T. Ayad a, ⁎ , K. Stephenson b, D. (A.L.) Smit c, O. Ben-Ari d, R. Késmárszky e, J.R. Lechien f, S. Sobol g, C. Meller h, Z. Sargi i, R. Maunsell j, R.D. De Siati k, H. Jia l, V. Krishnan m, H. North n, E.G. Eter o, O. Metwaly p, S. Peer q, N. Teissier r, L. Sowerby s, P. Hong t, N. Fakhry u
a Centre Hospitalier de l’Université de Montréal, Montreal, Canada
b Birmingham Children's Hospital, Birmingham, United Kingdom
c University Medical Centre Utrecht, Utrecht, The Netherlands
d Tel Aviv Sourasky Medical Center, affiliated to Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
e Hôpital de la Misericorde, Ajaccio, France
f Centre Hospitalier Universitaire de Bruxelles, Site Saint-Pierre, Bruxelles, Belgium
g University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
h Prince of Wales and Sydney Hospitals, Sydney, Australia
i Sylvester Comprehensive Cancer Center, University of Miami, Miami, Fl, USA
j Setor de Otorrinolaringologia Pediátrica, FCM-UNICAMP, Campinas, Brazil
k Université Catholique de Louvain, Cliniques Universitaires Saint Luc, Brussels, Belgium
l Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
m Madras ENT Research Foundation, Raja Annamalaipuram, Chennai, India
n Westmead Hospital, Sydney, Australia
o Saint joseph University, School of Medecine, Beirut, Lebanon
p Kasr Alainy School of Medicine, Cairo University, Cairo, Egypt
q Red Cross War Memorial Children's Hospital, Cape Town, South Africa
r Hôpital Robert Debré, Paris, France
s St. Joseph's Healthcare, Western University, London, Canada
t IWK Health Centre, Division of Otolaryngology-Head and Neck Surgery, Dalhousie University, Halifax, Nova Scotia
u Hôpital de la Conception, Marseille, France