[1] Katholieke Univ Leuven, My FetUZ Fetal Res Ctr, Cluster Women & Child Biomed Sci, Dept Dev & Regenerat, Leuven, Belgium
[2] Mahidol Univ, Fac Med, Dept Obstet & Gynecol, Maternal & Fetal Med Unit,Siriraj Hosp, Bangkok, Thailand
[3] Natl Inst Perinatol, Evidence Based Med Dept, Div Clin Res, Mexico City, DF, Mexico
[4] Univ Barcelona, IDIBAPS,CIBER ER, Hosp Clin & Hosp Sant Joan de Deu,Barcelona Ctr M, Fetal ID Fetal Med Res Ctr,Inst Clin Ginecol Obst, Barcelona, Spain
[5] Hosp Coracao Sao Paulo, Heart Hosp Sao Paulo, Sao Paulo, Brazil
[6] Maternidade Star Sao Luiz Rede DOr, Sao Paulo, Brazil
[7] Univ Hosp Leuven, Clin Dept Obstet & Gynaecol, Leuven, Belgium
[8] UCL, Inst Womens Hlth, London, England