Affiliation: | 1. Department of Obstetrics and Gynaecology, University of Tuebingen, Tuebingen, Germany;2. Fetal Medicine Foundation USA, Dayton, OH, USA Division of Maternal Fetal Medicine, Wright State University, Dayton, OH, USA;3. Prenatal Medicine Munich, Munich, Germany;4. Institute of Human Genetics, University of Tuebingen, Tuebingen, Germany |