1. Department of Gynaecology, University Medical Center Freiburg, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
2. Biological Anthropology, Medical Faculty, University Freiburg, Freiburg, Germany
3. Department of Pediatrics, University Medical Center Rostock, Rostock, Germany
4. School of Medicine, Queen’s University, Kingston, ON, Canada
5. Department of Statistics and Actuarial Science, University of Waterloo, Waterloo, ON, Canada
6. Carl-Thiem-Hospital, Cottbus, Germany
7. Department of Pediatrics, Paracelsus Medical University, Nuremberg, Germany
8. Department of Pediatrics, McMaster University, Hamilton, ON, Canada