[1] Bcnatal Barcelona Ctr Maternal Fetal Med, Hosp Clin & Hosp Sant Joan de Deu, Barcelona, Spain
[2] Univ Barcelona Campus, Josep Carreras Leukaemia Res Inst, Hosp Clin, Barcelona, Spain
[3] Ctr Biomed Res Rare Dis CIBER ER, Madrid, Spain
[4] Univ Insubria, Dept Obstet & Gynaecol, Osped Filippo Del Ponte, Varese, Italy