Affiliation: | 1. Fetal Medicine Service, Obstetrics, Gynecology and Reproductive Medicine Department, Institut Universitari Quirón-Dexeus, Barcelona, Spain;2. Statistical. Fetal Medicine Service, Obstetrics, Gynecology and Reproductive Medicine Department, Institut Universitari Quirón-Dexeus, Barcelona, Spain;3. Pathological Department in Hospital de Sant Joan de Déu, Esplugues de Llobregat, Barcelona, Spain |