[1] Lausanne University Hospital,Division of Pediatric Orthopaedic Surgery, Department Woman Mother Child
[2] Centre Hospitalier de Luxembourg–Clinique d’Eich,Department of Orthopaedic Surgery
[3] Luxembourg Institute of Health,Sports Medicine Research Laboratory
[4] Hôpital Femme Mere Enfant,Department of Pediatric Orthopaedic Surgery
[5] Centre Hospitalier Universitaire Vaudois,L’Hôpital de l’Enfance