Institution: | 1. Department of Maternal-Fetal Medicine, Institute Gynecology, Obstetrics and Neonatology, Hospital Clínic Barcelona, Catalonia, Spain;2. Labco-General Lab, Barcelona, Catalonia, Spain;3. Institut Català de la Salut, Barcelona, Catalonia, Spain;4. Centre de Diagnostic Biomedic, Barcelona, Catalonia, Spain |