[1] Clin Arlesheim, Res Dept, Arlesheim, Switzerland
[2] Zurich Univ Hosp, Dept Obstet, Perinatal Pharmacol, Schmelzbergstr 12-PF 125,Path G 51a, CH-8091 Zurich, Switzerland
[3] Maastricht Univ, CAPHRI Sch Publ Hlth & Primary Care, Dept Epidemiol, Maastricht, Netherlands
[4] Maastricht Univ, CARIM Sch Cardiovasc Dis, Maastricht, Netherlands