[1] Univ Oslo, Fac Math & Nat Sci, Dept Pharm, Pharmacoepidemiol & Drug Safety Res Grp, Oslo, Norway
[2] Univ Oslo, Fac Math & Nat Sci, PharmaTox Strateg Res Initiat, Oslo, Norway
[3] Katholieke Univ Leuven, Dept Pharmaceut & Pharmacol Sci, Leuven, Belgium
[4] Pharmacovigilance Ctr Lareb, Teratol Informat Serv, Shertogenbosch, Netherlands
[5] Katholieke Univ Leuven, L C&Y, Child & Youth Inst, Leuven, Belgium
[6] Lausanne Univ Hosp, Dept Woman Mother Child, Lausanne, Switzerland
[7] Newcastle Tyne Hosp NHS Fdn Trust, UK Teratol Informat Serv, Newcastle Upon Tyne, England
[8] UK Hlth Secur Agcy, Newcastle Upon Tyne, England
[9] Univ Bern, Inst Primary Hlth Care BIHAM, Bern, Switzerland
[10] Lausanne Univ Hosp, Serv Pharm, Lausanne, Switzerland
[11] Univ Hosp, Dept Femme Mere Enfant, Materno fetal & Obstet Res Unit, Lausanne, Switzerland
[12] Norwegian Inst Publ Hlth, Dept Child Hlth & Dev, Oslo, Norway