1. KU Leuven, University of Leuven and head of Fetal Maternal Medicine; University Hospitals Leuven; Leuven Belgium
2. Obstetrics and Gynecology, Cumming School of Medicine; University of Alberta and Alberta Health Services Calgary Zone; Edmonton Canada
3. Maternal-Fetal Medicine Division, Department of Obstetrics and Gynecology; Mayo Clinic College of Medicine; Rochester MN USA