Founding member and the Past-General secretary of the European laryngological association
Member of the Collegium Oto-Rhino-laryngologicum Amitiae Sacrum
Corresponding member of the American Laryngological Association
International member of the American Broncho-Esophagological Association
Corresponding member of the American Head & Neck Society
Corresponding member of the American academy of ORL- Head & neck Surgery
Corresponding member of the French society of ORL and Head & Neck pathology
Member of the French society of Head & Neck Carcinology
Member of the French society of Phoniatrics
Member of the Belgian society of ORL and Head & Neck Surgery
General secretary of the International Association of Phonosurgery
Past-President of the European federation of the ORL societies ( EUFOS)
Past-President the European confederation of the European ORl -Head & Neck surgery