[1] University Paris Diderot,General Practice Department
[2] Bichat University hospital,AP
[3] INSERM,HP and GREP, Gastroenterology and Proctology Unit
[4] IAME,Sorbonne Paris Cité, General practice department
[5] UMR 1137,undefined
[6] University Paris Diderot,undefined
[7] IAME,undefined
[8] UMR 1137,undefined
[9] AP-HP,undefined
[10] Bichat Hospital,undefined
[11] Biostatistics Unit,undefined
[12] Tivoli Ducos Clinic,undefined
[13] Proctology Unit,undefined
[14] Private hospital,undefined
[15] Blomet Clinic,undefined
[16] Proctology Unit,undefined
[17] Bagatelle Hospital,undefined
[18] University Paris Diderot,undefined
[19] F-75018 Paris,undefined
[20] France; REMES,undefined