1. Medical University Vienna; Department of Radiology, Division of Neuroradiology and Musculoskeletal Radiology; Waehringer Guertel 18-20 Vienna A-1090 Austria
2. Cedars Sinai Medical Center; Medical Genetics Institute, 8700 Beverly Boulevard, PACT Suite 400; 8700 Beverly Boulevard, PACT Suite 400 Los Angeles CA, 90048 90048 USA
3. Medical University Vienna; Center of Anatomy and Cell Biology, Integrative Morphology Group; Vienna Austria
4. Medical University Vienna; Department of Obstetrics and Gynaecology, Division of Prenatal Diagnosis and Therapy; Vienna Austria
5. Cedars Sinai Medical Center; Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine; Los Angeles CA USA