Addenbrooke's Hospital, Cambridge University Hospitals Trust, Cambridge, Cambridgeshire, United Kingdom
Queen Elizabeth Hospital, University of Birmingham NHS Hospitals Trust, Birmingham, West Midlands, United Kingdom
Hôpital Pitié Salpêtrière - APHP, Paris, France
IUFC - CHU Nice, Nice, France
APHP Pitie salpetriere, Paris, France
CHU Rennes Pontchaillou, Rennes, France
CHRU Lille Hôpital Roger Salengro, Lille, France
CHU Rennes Pontchaillou, Rennes, France
Hôpital la Pitié Salpêtrièr, Paris, France
University Hospital Bordeaux - Pellegrin, Bordeaux, France
University Hospital Lyon - Edouard Herriot, Lyon, France
University Hospital Pitié Salpétrière, Paris, France
Nova Scotia Hearing and Speech centres, Halifax, Canada
Ottawa Civic Hospital, Ottawa, Canada
CHU de Quebec - Université de Laval, Québec, Canada
Maastricht University Medical Centre, Maastricht, Netherlands
Department of Otorhinolaryngology, Karolinska University Hospital, Stockholm, Sweden
Department of Oto-Rhino-Laryngology & Audiology, Aalborg University Hospital, Aalborg, Denmark
Dept. of Otolaryngology - Head & Neck Surgery and Audiology, Gentofte/Rigshospitalet, Gentofte, Hellerup, Denmark
Radboud University Medical Centre, Nijmegen, Netherlands