[1] Univ Antioquia, Hosp Univ San Vicente Fdn, Medellin, Colombia
[2] Univ Antioquia, Dept Obstet & Ginecol, NACER Salud Sexual & Reprod, Medellin, Colombia
[3] FUNDARED MATERNA, Bogota, Colombia
[4] Oregon Hlth & Sci Univ, Dept Obstet & Gynecol, Div Maternal Fetal Med, Portland, OR 97201 USA
[5] Cedars Sinai Med Ctr, Los Angeles, CA 90048 USA
[6] Clin Colsanitas SA, Bogota, Colombia
[7] Clin Colsanitas SA, Lab Clin Sanitas, Grp Invest INPAC, Bogota, Colombia
[8] Pontificia Univ Javeriana, Hosp Univ San Ignacio, Bogota, Colombia
[9] Grp Invest Maternidad Segura, ESE Clin Maternidad Rafael Calvo, Cartagena, Colombia
[10] Univ Pontificia Bolivariana, Clin Univ Bolivariana, Medellin, Colombia
[11] Hosp Gen Medellin, Luz Castro de Gutierrez ESE, Medellin, Colombia
[12] Univ Sinu, ESE Clin Maternidad Rafael Calvo, Cartagena, Colombia
[13] Univ Cartagena, ESE Clin Maternidad Rafael Calvo, Cartagena, Colombia