[1] Hop Toulouse, Fac Med, Ctr Midi Pyrenees Pharmacovigilance Pharmacoepide, Serv Pharmacol Clin, F-31073 Toulouse, France
[2] Maison Arret St Michel, Serv Medicopsychol Reg, Toulouse, France
[3] Fac Pharmaceut Sci, Lab Galen & Pharm Clin, Toulouse, France
[4] Hop Rangueil, Ctr Hosp Univ, Serv Gastroenterol, Toulouse, France