[1] Lyon Univ Hosp, Poison Ctr, Lyon, France
[2] Lyon Univ Hosp, Pharmacovigilance Dept, Lyon, France
[3] Hop Croix Rousse, Dept Gastroenterol, F-69317 Lyon, France
[4] Hop Edouard Herriot, Dept Hematol, Lyon, France
[5] Hop Hotel Dieu, Dept Gastroenterol, F-69288 Lyon, France
[6] Hop Hotel Dieu, INSERM, U871, F-69288 Lyon, France