Publications and communications of Frédéric Billen

Lyssens, A., Biénès, T., Fastrès, A., Machiels, H., Moreau, C., Tutunaru, A.-C., DEVILLE, M., Charlier, C., Clercx, C., & Billen, F. (2024). Three-minute nebulization of gentamicin in healthy dogs results in therapeutic concentrations in bronchoalveolar lavage fluid while remaining below the toxic range values in blood. American Journal of Veterinary Research, 1 - 8. doi:10.2460/ajvr.23.10.0247

Biénès, T., Lyssens, A., Machiels, H., Hercot, M.-E., Fastrès, A., Alexandru-Cosmin, T., Deville, M., Charlier, C., Billen, F., & Clercx, C. (28 July 2023). Intranasal and Serum Gentamicin Concentration: Comparison of Three Topical Administration Protocols in Dogs. Veterinary Sciences, 10 (8), 490. doi:10.3390/vetsci10080490

Vangrinsven, E., Fastrès, A., Taminiau, B., Billen, F., Daube, G., & Clercx, C. (15 April 2023). Assessment of the nasal microbiota in dogs with fungal rhinitis before and after cure and in dogs with chronic idiopathic rhinitis. BMC Microbiology, 23 (1), 104. doi:10.1186/s12866-023-02828-7

Snoeck, A., Jaffey, J., Billen, F., Peeters, S., Le Goff, C., Peeters, D., Fernandes Rodrigues, N., Cavalier, E., & Clercx, C. (03 November 2022). Serum 25-hydroxyvitamin D and 24,25-dihydroxyvitamin D in dogs with sinonasal aspergillosis. Journal of Veterinary Internal Medicine, 36, 2455-2551.

Rodrigues, N. F., Giraud, L., Bolen, G., Fastrès, A., Clercx, C., Boysen, S., Billen, F., & Gommeren, K. (2022). Response to letter regarding "Comparison of lung ultrasound, chest radiographs, C-reactive protein, and clinical findings in dogs treated for aspiration pneumonia". Journal of Veterinary Internal Medicine. doi:10.1111/jvim.16558

Fernandes Rodrigues, N., Giraud, L., Bolen, G., Fastrès, A., Clercx, C., Gommeren, K., & Billen, F. (May 2022). Antimicrobial discontinuation in dogs with acute aspiration pneumonia based on clinical improvement and normalization of C-reactive protein concentration. Journal of Veterinary Internal Medicine, 36 (3), 1082-1088. doi:10.1111/jvim.16405

Fernandes Rodrigues, N., Giraud, L., Bolen, G., Fastrès, A., Clercx, C., Boysen, S., Billen, F., & Gommeren, K. (March 2022). Comparison of lung ultrasound, chest radiographs, C-reactive protein, and clinical findings in dogs treated for aspiration pneumonia. Journal of Veterinary Internal Medicine, 36 (2), 743-752. doi:10.1111/jvim.16379

Gremillet, B., Porsmoguer, C., Bolen, G., Billen, F., Noël, S., Brutinel, F., & Busoni, V. (2022). Imaging Findings in Dogs and Cats With Presumptive Sclerosing Encapsulating Peritonitis. Frontiers in Veterinary Science, 9, 891492. doi:10.3389/fvets.2022.891492

Picavet, P., Hamon, M., Etienne, A.-L., Guieu, L.-V., Claeys, S., Billen, F., & Noël, S. (2022). Laryngeal paralysis secondary to cervical bite injuries in five dogs. New Zealand Veterinary Journal. doi:10.1080/00480169.2021.1951865

Roels, E., Canonne-Guibert, M., Fastrès, A., Billen, F., Garigliany, M.-M., & Clercx, C. (01 September 2021). Assessment of both IDEXX Angio Detect on bronchoalveolar lavage fluid and Angiostrongylus vasorum quantitative polymerase chain reaction on EDTA blood in dogs that tested negative for IDEXX Angio Detect on EDTA blood [Poster presentation]. 31st ECVIM-CA annual congress.

Canonne-Guibert, M., Menard, M., Maurey, C., Benchrekroun, G., Fernandes Rodrigues, N., Billen, F., & Clercx, C. (2021). Comparison of C-reactive protein concentrations in dogs with Bordetella bronchiseptica infection and aspiration bronchopneumonia. Journal of Veterinary Internal Medicine. doi:10.1111/jvim.16091

Thiry, D., Billen, F., Boyen, F., Duprez, J.-N., Quenault, H., Touzain, F., Blanchard, Y., Clercx, C., & Mainil, J. (2021). Genomic relatedness of a canine Lactococcus garvieae to human, animal and environmental isolates. Research in Veterinary Science, 137, 170-173. doi:10.1016/j.rvsc.2021.04.032

Thiry, D., Billen, F., Boyen Filip, Duprez, J.-N., Quenault Hélène, Touzain Fabrice, Blanchard Yannick, Clercx, C., & Mainil, J. (2021). Genomic relatedness of a canine Lactococcus garvieae to human, animal and environmental isolates [Paper presentation]. 3rd ECVM, Italy.

Vangrinsven, E., Fastrès, A., Taminiau, B., Billen, F., Daube, G., & Clercx, C. (2021). Variations in facial conformation are associated with differences in nasal microbiota in healthy dogs. BMC Veterinary Research, 17 (1), 100. doi:10.1186/s12917-021-03055-w

Vangrinsven, E., Broux, O., Massart, L., Claeys, S., Clercx, C., & Billen, F. (01 December 2020). Diagnosis and treatment of gastro-oesophageal junction abnormalities in dogs with brachycephalic syndrome. Journal of Small Animal Practice, 62 (3), 200-208. doi:10.1111/jsap.13279

Biénès, T., Fastrès, A., Vangrinsven, E., Billen, F., Garigliany, M.-M., & Clercx, C. (17 October 2020). Aspergillus qPCR testing on nasal swab: A useful tool for diagnosis and follow‐up of sinonasal aspergillosis in dogs? Journal of Veterinary Internal Medicine, 34 (6), 3058-3166.

Canonne-Guibert, M., Roels, E., Menard, M., Desquilbet, L., Billen, F., & Clercx, C. (September 2020). Clinical response to 2 protocols of aerosolized gentamicin in 46 dogs with Bordetella bronchiseptica infection (2012-2018). Journal of Veterinary Internal Medicine, 34 (5), 2078-2085. doi:10.1111/jvim.15843

Fastrès, A., Canonne-Guibert, M., Taminiau, B., Billen, F., Garigliany, M.-M., Daube, G., & Clercx, C. (2020). Analysis of the lung microbiota in dogs with Bordetella bronchiseptica infection and correlation with culture and quantitative polymerase chain reaction. BMC Veterinary Research, 51 (46), 1-12. doi:10.1186/s13567-020-00769-x

Fastrès, A., Canonne-Guibert, M., Taminiau, B., Billen, F., Garigliany, M.-M., Daube, G., & Clercx, C. (08 November 2019). Analysis of the lung microbiota in dogs with Bordetella bronchiseptica infection and correlation with culture and quantitative polymerase chain reaction [Poster presentation]. 6th FARAH DAY, Liège, Belgium.

Fastrès, A., Canonne, A. M., Taminiau, B., Billen, F., Garigliany, M.-M., Daube, G., & Clercx, C. (September 2019). ANALYSIS OF THE LUNG MICROBIOTA IN DOGS WITH BORDETELLA BRONCHISEPTICA INFECTION AND CORRELATION WITH CULTURE AND QUANTITATIVE POLYMERASE CHAIN REACTION [Paper presentation]. 37th Annual VCRS Symposium, Caen, France.

Egyptien, S., Shimizu, N., Anne-Archard, N., Billen, F., Deleuze, S., & Noël, S. (26 October 2018). Pyocolpos in a spayed queen with imperforate hymen: a case report [Poster presentation]. FARAH DAY, Liège, Belgium.

Vangrinsven, E., Girod, M., Goossens, D., Desquilbet, L., Clercx, C., & Billen, F. (September 2018). Comparison of two minimally invasive enilconazole perendoscopic infusion protocols for the treatment of canine sinonasal aspergillosis. Journal of Small Animal Practice, 59 (12), 777-782. doi:10.1111/jsap.12933

Hamon, M., Picavet, P., Etienne, A.-L., Guieu, L.-V., Billen, F., & Noël, S. (August 2018). Bilateral laryngeal paralysis secondary to traumatic nerve damage in two dogs [Poster presentation]. European College of Veterinary Surgeons – 27th Annual Scientific Meeting, Athens, Greece.

Egyptien, S., Shimizu, N., Anne-Archard, N., Billen, F., Deleuze, S., & Noël, S. (June 2018). Pyocolpos in a spayed queen with imperforate hymen: a case report [Poster presentation]. EVSSAR Congress, Venise, Italy.

Canonne, A. M., Billen, F., Losson, B., Peters, I., Schnyder, M., & Clercx, C. (May 2018). Angiostrongylosis in dogs with negative fecal and in-clinic rapid serological tests: 7 Cases (2013-2017). Journal of Veterinary Internal Medicine, 32 (3), 951-955. doi:10.1111/jvim.15092

Broux, O., Clercx, C., Etienne, A.-L., Busoni, V., Claeys, S., Hamaide, A., & Billen, F. (2018). Effects of manipulations to detect sliding hiatal hernia in dogs with brachycephalic airway obstructive syndrome. Veterinary Surgery, 47, 243-251. doi:10.1111/vsu.12735

Roels, E., Merveille, A.-C., Billen, F., Moyse, E., & Clercx, C. (2018). Assessment of pulmonary hypertension in dogs with angiostrongylosis before and after treatment [Poster presentation]. European college of veterinary internal medicine congress.

Liotta, A. P., Billen, F., Heimann, M., Hamaide, A., Rizza, M., Etienne, A.-L., & Bolen, G. (2017). Prevalence, location and concurrent diseases of ultrasonographic cyst-like lesions of abdominal lymph nodes in dogs. Veterinary Record. doi:10.1136/vr.103795

Billen, F., & Peeters, D. (2017). Aspergillosis - Canine. In S. Ettinger, E. Feldman, ... E. Côté, Textbook of Veterinary Internal Medicine, 8 th Edition (pp. 1035-1039). Elsevier.

Vangrinsven, E., Broux, O., Claeys, S., Clercx, C., & Billen, F. (2017). Investigation of laryngeal function and effect of surgery on laryngeal collapse in dogs with brachycephalic syndrome. Journal of Veterinary Internal Medicine, 31, 231.

Roels, E., Bauer, N., LECUT, C., Billen, F., Soete, C., Peters, P., Moritz, A., Gothot, A., & Clercx, C. (September 2016). Investigation of the coagulation system in canine idiopathic pulmonary fibrosis [Poster presentation]. 26 th ECVIM-CA congress, Goteborg, Sweden.

Canonne-Guibert, M., Billen, F., Tual, C., Ramery, E., Roels, E., Peeters, D., & Clercx, C. (July 2016). Quantitative PCR and Cytology of Bronchoalveolar Lavage Fluid in Dogs with Bordetella bronchiseptica Infection. Journal of Veterinary Internal Medicine, 30 (4), 1204-1209. doi:10.1111/jvim.14366

Canonne, A. M., Bolen, G., Peeters, D., Billen, F., & Clercx, C. (2016). Long-term follow-up in dogs with idiopathic eosinophilic bronchopneumopathy treated with inhaled steroid therapy. Journal of Small Animal Practice, 57 (10), 537-542. doi:10.1111/jsap.12529

Canonne-Guibert, M., Roels, E., Caron, Y., Losson, B., Bolen, G., Peters, I., Billen, F., & Clercx, C. (2016). Detection of Angiostrongylus vasorum by quantitative PCR in bronchoalveolar lavage fluid in Belgian dogs. Journal of Small Animal Practice, 57 (3), 130-134. doi:10.1111/jsap.12419

Girod, M., Goosens, D., Volpe, R., Clercx, C., & Billen, F. (2016). Comparison of two non-invasive 2% enilconazole infusion protocols for treatment of canine sinonasal aspergillosis and importance of debridement for treatment efficacy. Journal of Veterinary Internal Medicine, 30 (1), 378.

Noël, S., Billen, F., Bolen, G., & Hamaide, A. (2016). Management of a postoperative vaginal stricture by perendoscopic balloon dilation in a dog. Veterinary Record Case Reports, 4 (1).

Roels, E., Gommeren, K., Farnir, F., Delvaux, F., Billen, F., & Clercx, C. (2016). Comparison of 4 point-of-care blood gas analyzers for arterial blood gas analysis in healthy dogs and dogs with cardiopulmonary disease. Journal of Veterinary Emergency and Critical Care, 00 (0), 1-8. doi:10.1111/vec.12469

Vangrinsven, E., Broux, O., Claeys, S., Clercx, C., & Billen, F. (2016). Endoscopic investigation of the gastroesophageal junction dynamics in dogs with brachycephalic syndrome. Journal of Veterinary Internal Medicine, 30, 379.

Broux, O., Clercx, C., Busoni, V., Claeys, S., Hamaide, A., & Billen, F. (2015). Use of a thorax-abdomen pressure gradient to improve the diagnosis of dynamic sliding hiatal hernia in 20 dogs with baos. Veterinary Surgery.

Liotta, A. P., Heimann, M., Billen, F., Hamaide, A., Rizza, M., & Bolen, G. (29 May 2015). Prevalence, location and concurrent diseases in dogs with ultrasonographic abdominal cystic lymph nodes [Paper presentation]. 15th SCIVAC INTERNATIONAL MEETING, RIMINI, Italy.

Barrs, V., Ujvari, B., Dhand, N. K., Peters, I. R., Talbot, J., Johnson, L. R., Billen, F., Martin, P., Beatty, J. A., & Belov, K. (2015). Detection of Aspergillus-specific antibodies by agar gel double immunodiffusion and IgG ELISA in feline upper respiratory tract aspergillosis. Veterinary Journal. doi:10.1016/j.tvjl.2014.12.020

Broux, O., Clercx, C., Busoni, V., Claeys, S., Hamaide, A., & Billen, F. (2015). Use of a thorax-abdomen pressure gradient to improve the diagnosis of dynamic sliding hiatal hernia in 20 dogs with BAOS [Paper presentation]. 2nd FARAH Day, Liège, Belgium.

Broux, O., Etienne, A.-L., Billen, F., & Hamaide, A. (2015). Urethral intussusception following traumatic catheterization in a male cat. Veterinary Surgery.

Broux, O., Etienne, A.-L., Billen, F., & Hamaide, A. (2015). Urethral intussusception following traumatic catheterization in a male cat [Poster presentation]. 2nd FARAH Day, Liège, Belgium.

Clercx, C., & Billen, F. (2015). Sinusitis and Other Sinus Disorders. In E. Côté, Clinical Veterinary Advisor, Dogs and Cats, 3 rd Edition (pp. 941 - 942). Elsevier.

Clercx, C., & Billen, F. (2015). Rhinitis, Lymphoplasmacytic. In E. Côté, Clinical Veterinary Advisor, Dogs and Cats, 3 rd Edition (pp. 911 - 912). Elsevier.

Clercx, C., & Billen, F. (2015). Rhinitis, Bacterial. In E. Côté, Clinical Veterinary Advisor, Dogs and Cats, 3 rd Edition (pp. 910 - 911). Elsevier.

Clercx, C., & Billen, F. (2015). Reverse Sneezing. In E. Côté, Clinical Veterinary Advisor, Dogs and Cats, 3 rd Edition (pp. 907 - 908). Elsevier.

Clercx, C., & Billen, F. (2015). Eosinophilic Bronchopneumopathy. In E. Côté, clinical Veterinary Advisor, Dogs and Cats, 3 rd Edition (pp. 319 - 320). Elsevier.

Deroy, C., Corcuff, J.-B., Billen, F., & Hamaide, A. (2015). Removal of oesophageal foreign bodies: comparison between oesophagoscopy and oesophagotomy in 39 dogs. Journal of Small Animal Practice, 56, 613-617. doi:10.1111/jsap.12386

Gérard, F., Noël, S., Billen, F., & Hamaide, A. (2015). Sténose nasopharyngée récidivante chez un chat traitée par avancement d'un lambeau muqueux nasopharyngé. Monde Vétérinaire.

Rizza, M., Liotta, A. P., Billen, F., & Bolen, G. (2015). Tracheal diameter in puppies. Veterinary Radiology and Ultrasound.

Canonne-Guibert, M., Roels, E., Billen, F., Peters, I., & Clercx, C. (2014). Detection of Bordetella bronchiseptica, Mycoplasma canis and Mycoplasma cynos by specific quantitative polymerase chain reaction assays in the bronchoalveolar lavage fluid of dogs with eosinophilic bronchopneumopathy. In Proceedings of the 24th Ecvim Meeting, Mainz, Germany - 4-6 September 2014.

Canonne-Guibert, M., Roels, E., Caron, Y., Losson, B., Peeters, D., Peters, I., Billen, F., & Clercx, C. (2014). Detection of Angiostrongylus vasorum in the bronchoalveolar lavage fluid or faeces of coughing and healthy dogs in Belgium. In Proceedings of the 24th Ecvim Meeting, Mainz, Germany - 4-6 September 2014.

Canonne-Guibert, M., Roels, E., Ramery, E., Billen, F., Peters, I., & Clercx, C. (2014). Detection of Mycoplasma canis and Mycoplasma cynos by specific quantitative polymerase chain reaction assays in the bronchoalveolar lavage fluid in dogs infected with Bordetella bronchiseptica. In Proceedings of the 24th Ecvim Meeting, Mainz, Germany - 4-6 September 2014.

Caron, Y., Merveille, A.-C., Losson, B., & Billen, F. (2014). Crenosoma Vulpis infection in two young dogs in Belgium. Veterinary Record Case Reports.

Merveille, A.-C., Battaille, G., Billen, F., Deleuze, S., Fredholm, M., Thomas, A., Clercx, C., & Lequarré, A.-S. (May 2014). Clinical findings and prevalence of the mutation associated with primary ciliary dyskinesia in Old English Sheepdogs. Journal of Veterinary Internal Medicine, 28, 771. doi:10.1111/jvim.12336

La vennes, M., Liotta, A. P., & Billen, F. (2014). Aspergillose naso-sinusale chez un chat. Monde Vétérinaire.

Talbot, J., Johnson, L., Martin, P., Beatty, J., Sutton, D., Billen, F., Halliday, C., Gibson, J., Kidd, S., Steiner, J., Ujvari, B., & Barrs, V. (2014). What causes canine sino-nasal aspergillosis? A molecular approach to species identification. Veterinary Journal. doi:10.1016/j.tvjl.2014.01.009

Rizza, M., Claeys, S., Billen, F., Mc Entee, K., & Bolen, G. (01 December 2013). Persistent right aortic arch associated with an aberrant left subclavian artery arising from a patent ductus arteriosus in a puppy [Poster presentation]. CT-User meeting, Ghent, Belgium.

Canonne-Guibert, M., Bolen, G., Billen, F., & Clercx, C. (2013). Long term follow up in dogs with eosinophilic bronchopneumopathy treated with inhaled glucocorticosteroid therapy preliminary. Proceedings of the 23th ECVIM Meeting.

Canonne-Guibert, M., Tual, C., Billen, F., & Clercx, C. (2013). Interest vein of PCR and cytological examination of bronchoalveolar lavage fluid in the diagnosis of bortetellosis in young dogs. A premiminary study. Proceedings of the 23th ECVIM Meeting.

Roels, E., Delvaux, F., Farnir, F., Billen, F., & Clercx, C. (2013). Comparison of four cartridge type automated blood gas analysers for arterial blood gas analysis in dogs. Proceedings of the 23th ECVIM Meeting.

Rizza, M., Claeys, S., Billen, F., Mc Entee, K., & Bolen, G. (31 August 2013). Persistent right aortic arch associated with an aberrant left subclavian artery arising from a patent ductus arteriosus in a puppy [Poster presentation]. European Veterinary Diagnostic Imaging annual scientific meeting 2013, Cascais, Portugal.

Vanherberghen, M., Bureau, F., Peters, I. R., Day, M. J., Lynch, A., Fievez, L., Billen, F., Clercx, C., & Peeters, D. (15 August 2013). Cytokine and transcription factor expression by Aspergillus fumigatus-stimulated peripheral blood mononuclear cells in dogs with sino-nasal aspergillosis. Veterinary Immunology and Immunopathology, 154 (3-4), 111-20. doi:10.1016/j.vetimm.2013.05.009

Mercier, E., Peters, I. R., Billen, F., Bataille, G., Clercx, C., Day, M. J., & Peeters, D. (April 2013). Potential role of Alternaria and Cladosporium species in canine lymphoplasmacytic rhinitis. Journal of Small Animal Practice, 54 (4), 179-83. doi:10.1111/jsap.12049

Finck, M., Busoni, V., Billen, F., Hamaide, A., & Bolen, G. (2013). Ultrasound-guided brush cytology of bladder and urethral lesions in dogs: techniques and results. Veterinary Radiology and Ultrasound, 54 (4), 423.

Noël, S., Billen, F., & Hamaide, A. (2012). Management of vaginal stenosis by balloning dilation after vaginourethrography in a dog. Veterinary Surgery.

Leemans, J., Kirschvink, N., Bernaerts, F., Clercx, C., Snaps, F., Billen, F., & Gustin, P. (2011). Salmeterol or doxycycline do not inhibit acute bronchospasm and airway inflammation in cats with experimentally-induced asthma. Veterinary Journal, 49-56. doi:10.1016/j.tvjl.2011.11.001

Mercier, E., Peters, I., Billen, F., Bataille, G., Clercx, C., Day, M., & Peeters, D. (2011). Detection of Alternaria and Cladosporium DNA in nasal mucosa from dogs with idiopathic lymphoplasmacytic rhinitis. In Proceedings of the 21st ECVIM-CA congress (pp. 248).

Merveille, A.-C.* , Davis, E. E.* , Becker-Heck, A.* , Legendre, M.* , Amirav, I., Bataille, G., Belmont, J., Beydon, N., Billen, F., Clement, A., Clercx, C., Coste, A., Crosbie, R., de Blic, J., Deleuze, S., Duquesnoy, P., Escalier, D., Escudier, E., Fliegauf, M., ... Amselem, S.*. (2011). CCDC39 is required for assembly of inner dynein arms and the dynein regulatory complex and for normal ciliary motility in humans and dogs. Nature Genetics, 43 (1), 72-8. doi:10.1038/ng.726
* These authors have contributed equally to this work.

Merveille, A.-C., Bataille, G., Davis, E., Billen, F., Clercx, C., & Lequarré, A.-S. (2010). Prevalence of the mutation responsible for primary ciliary dyskinesia a large population of European and American old English sheepdogs. In 20th ECVIM Meeting - Toulouse - France - 9-12 septembre 2010.

Van Galen, G., Bolen, G., Verwilghen, D., Etienne, A.-L., Rabba, S., Grulke, S., Billen, F., & Snaps, F. (August 2010). Computed Tomographic Features of Choanal Atresia in a Friesian Foal. Journal of Equine Veterinary Science, 30 (8), 436-440. doi:10.1016/j.jevs.2010.07.001

Billen, F., Peeters, D., & Clercx, C. (June 2010). L’aspergillose naso-sinusale chez le chien. Monde Vétérinaire, 107, 8-11.

Billen, F., Guieu, L.-V., Bernaerts, F., Mercier, E., Lavoué, R., Tual, C., Peeters, D., & Clercx, C. (2010). Efficacy of intrasinusal administration of bifonazole cream alone or in combination with enilconazole irrigation in canine sino-nasal aspergillosis: 17 cases. Canadian Veterinary Journal, 51, 164-168.

Gommeren, K., Peyron, C., Lacoste-Garanger, N., Pellegrims, A., Billen, F., & Peeters, D. (2010). Correlation of palpated pulse and invasive arterial blood pressure in dogs. In Proceedings of the 9th EVECCS Annual meeting.

Gommeren, K., Peyron, C., Lacoste-Garanger, N., Pellegrims, A., Peeters, D., & Billen, F. (2010). Evaluation of oscillometric devices for detection of hypotension in anaesthetized dogs. In Proceedings of the 9th EVECCS Annual meeting.

Leemans, J., Cambier, C., Chandler, T., Billen, F., Clercx, C., Kirschvink, N., & Gustin, P. (2010). Prophylactic effects of omega-3 polyunsaturated fatty acids and luteolin on airway hyperresponsiveness and inflammation in cats with experimentally-induced asthma. Veterinary Journal. doi:10.1016/j.tvjl.2009.01.008

Vanherberghen, M., Bureau, F., Peters, I. R., Fievez, L., Billen, F., Clercx, C., & Peeters, D. (2010). Cytokine expression by Aspergillus fumigatus stimulated peripheral blood mononuclear cells from dogs with sino-nasal aspergillosis. In Proceedings of the 20th Annual Congress of the ECVIM-CA (pp. 242).

Billen, F., Peeters, D., Huynen, P., De Mol, P., & Clercx, C. (2009). Comparison of the value of fungal culture and galactomannan detection in nasal secretions obtained by three non-invasive sampling methods in the diagnosis of canine sinonasal aspergillosis. In Proceedings of the 19th ECVIM-CA Congress (pp. 263).

Merveille, A.-C., Bataille, G., Davis, E., Billen, F., Clercx, C., Georges, M., & Lequarré, A.-S. (2009). Detection of a new mutation responsible for primary ciliary dyskinesia in a pedigree of old English Sheepdogs. In 19h ECVIM Meeting - Porto, Portugal - 8-10 septembre 2009.

Noël, S., Billen, F., & Hamaide, A. (September 2009). Telemetric investigation of the vesico-urethral function in the bitch: preliminary results [Poster presentation]. 19ème Annual Congress de l'ECVIM, Porto, Portugal.

Billen, F., Clercx, C., Le Garérrès, A., Massart, L., Mignon, B., & Peeters, D. (2009). Effect of sampling method and incubation temperature on fungal culture in canine sino-nasal aspergillosis. Journal of Small Animal Practice, 50 (2), 67-72. doi:10.1111/j.1748-5827.2008.00672.x

Billen, F., Peeters, D., Peters, I. R., Helps, C. R., Huynen, P., De Mol, P., Massart, L., Day, M. J., & Clercx, C. (2009). Comparison of the value of measurement of serum galactomannan and Aspergillus-specific antibodies in the diagnosis of canine sino-nasal aspergillosis. Veterinary Microbiology, 133 (4), 358-65. doi:10.1016/j.vetmic.2008.07.018

Merveille, A.-C., Battaille, G., Billen, F., Clercx, C., Georges, M., & Lequarré, A.-S. (2009). Identification of a new mutation responsible for primary ciliary dyskinesia in dogs: a model for human PCD. Journal of Veterinary Internal Medicine.

Billen, F. (2008). Intérêt des tests microbiologiques dans le diagnostic de l’aspergillose naso-sinusale dans l’espèce canine et évaluation d’un nouveau protocole thérapeutique topique [Doctoral thesis, Université de Liège]. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/315126

Billen, F., Guieu, L.-V., Bernaerts, F., Mercier, E., Lavoué, R., Tual, C., Peeters, D., & Clercx, C. (2008). Clinical efficacy of intrasinusal administration of bifonazole cream through perendoscopically placed catheters alone or in combination with enilconazole irrigation in canine sinonasal aspergillosis. In Proceedings of the 18th ECVIM-CA Congress (pp. 219).

Billen, F., Peeters, D., Peters, I., Huynen, P., De Mol, P., Day, M., & Clercx, C. (2008). Comparison of three serological tests for the diagnosis of canine sino-nasal aspergillosis. In Proceedings of the 18th ECVIM-CA Congress (pp. 196).

Billen, F., Clercx, C., & Peeters, D. (2008). Le point sur le diagnostic de l’aspergillose naso-sinusale chez le chien. Annales de Médecine Vétérinaire, 152(2), 61-70.

Cavrenne, R., De Busscher, V., Bolen, G., Billen, F., Clercx, C., & Snaps, F. (2008). Primary ciliary dyskinesia and situs inversus in a young dog. Veterinary Record, 163 (2), 54-5. doi:10.1136/vr.163.2.54

Manens, J., Bolognin, M., Mercier, E., Momont, M., Billen, F., & Clercx, C. (2007). Therapeutic response in dogs with lymphoplasmacytic rhinitis: a retrospective study in 12 dogs. In 25th Symposium of the Veterinary Comarative Respiratory Society - Purdue, USA 10-13 octobre 2007.

Billen, F., Binst, D., Geyskens, V., Lequarré, A.-S., Mercier, E., Snaps, F., Jorissen, M., Peeters, D., & Clercx, C. (2007). Primary ciliary dyskinesia in a family of Old English Sheepdogs. In Proceedings of the 17th ECVIM-CA congress (pp. 244).

Billen, F., Day, M. J., & Clercx, C. (March 2006). Diagnosis of pharyngeal disorders in dogs: a retrospective study of 67 cases. Journal of Small Animal Practice, 47 (3), 122-129. doi:10.1111/j.1748-5827.2006.00032.x

Billen, F., Peeters, D., Dehard, S., Day, M. J., & Clercx, C. (2006). Distribution of leucocyte subsets in the canine pharyngeal tonsil. Journal of Comparative Pathology, 135 (2-3, Aug-Oct), 63-73. doi:10.1016/j.jcpa.2006.04.004

Billen, F., & Van Israel, N. (2006). Syncope secondary to transient atrioventricular block in a German shepherd dog with dilated cardiomyopathy and atrial fibrillation. Journal of Veterinary Cardiology, 8 (1), 63-8. doi:10.1016/j.jvc.2005.12.003

Petite, A., Busoni, V., Heinen, M.-P., Billen, F., & Snaps, F. (2006). Radiographic and ultrasonographic findings of emphysematous cystitis in four nondiabetic female dogs. Veterinary Radiology and Ultrasound, 47 (1), 90-93. doi:10.1111/j.1740-8261.2005.00112.x

Billen, F., Peeters, D., Dehard, S., & Day, M. (2005). Histochemical and immunohistochemical characterisation of canine nasopharyngeal lymphoid tissue. In Proceedings of the 15th ECVIM-CA Congress (1-3/09/2005), Glasgow, Scotland (pp. 204).

Billen, F., Peeters, D., Dehard, S., Day, M. J., & Clercx, C. (2005). Histochemical and immunohistochemical characterization of canine nasopharyngeal lymphoid tissue. In 15th ESVIM Meeting - Glasgow - Ecosse - Septembre 2005.

Kirschvink, N., Leemans, J., Delvaux, F., Billen, F., Clercx, C., & Gustin, P. (2004). Preventive use of bronchodilators reduces bronchoscopy-induced airflow limitation in cats. In ACVIM Meeting - Minneapolis - USA - Juin 2004.

Billen, F., Peeters, D., Day, M., & Clercx, C. (2003). Clinical comparison between nasopharyngeal, oropharyngeal and laryngopharyngeal disorders in dogs and cats: a review of 80 cases. In Proceedings of the 13th ECVIM-CA Congress (4-6/09/2003), Uppsala, Sweden (pp. 158).

Clercx, C., Gabriel, A., Billen, F., Zimmer, F., Leemans, J., Gustin, P., & Kirschvink, N. (2003). The use of barometric whole-body pletysmography to compare airway responsiveness in dogs and cats. In 13th ESVIM Meeting - Uppsla - Septembre 2003.

Petite, A., Busoni, V., Heinen, M.-P., Billen, F., & Snaps, F. (2002). Radiographic and ultrasonographic findings in 4 cases of emphysematous cystitis in non-diabetic dogs [Paper presentation]. 9ème Congrès de l'European association of Veterinary diagnostic Imaging, Murcia, Spain.