[1] Grp Hosp Est, Ctr Pathol Est, F-69500 Bron, France
[2] Grp Hosp Est, Serv Chirurg Maxillofaciale & Stomatol Pediat, F-69677 Lyon, France
[3] Grp Hosp Est, Serv Rhumatol Pediat, F-69677 Lyon, France
[4] Grp Hosp Est, Serv Otorhinolaryngol Pediat, F-69677 Lyon, France
[5] Grp Hosp Est, Serv Imagerie, F-69677 Lyon, France