[1] Univ Bern, Inst Primary Hlth Care BIHAM, Bern, Switzerland
[2] Lausanne Univ Hosp, Dept Woman Mother Child, Maternofetal & Obstet Res Unit, CH-1011 Lausanne, Switzerland
[3] Katholieke Univ Leuven, Dept Pharmaceut & Pharmacol Sci, Leuven, Belgium
[4] CHU Vaudois, Swiss Teratogen Informat Serv, Lausanne, Switzerland
[5] CHU Vaudois, Clin Pharmacol Serv, Lausanne, Switzerland
[6] Univ Lausanne, Lausanne, Switzerland
[7] CHU Vaudois, Serv Pharm, Lausanne, Switzerland