1. 11th Department of Pediatric Orthopedics, ‘Carol Davila’ University of Medicine and Pharmacy, 050474 Bucharest, Romania
2. Department of Pediatric Orthopedics, ‘Grigore Alexandrescu’ Children's Emergency Hospital, 011743 Bucharest, Romania
3. Department of Gynecology and Obstetrics, ‘Carl Gustav Carus’ University, D‑01307 Dresden, Germany
4. Department of Clinical Surgery, Faculty of Medicine and Pharmacy, Dunărea de Jos' University, 800008 Galați, Romania