Institution: | 1. Department of Obstetrics and Gynecology, Washington University School of Medicine, St Louis, MO, USA;2. Human Genetics, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands;3. Fetal Medicine Section, Leiden University Medical Centre, Leiden, The Netherlands;4. Department of Obstetrics and Gynecology, The Chinese University of Hong Kong, Hong Kong, China;5. Division of Reproductive Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA |