1. Department of Pediatric Orthopaedics; Orthopaedic Hospital Speising-Vienna; Vienna Austria
2. International Center for Limb Lengthening, Rubin Institute for Advanced Orthopedics; Sinai Hospital of Baltimore; Baltimore MD USA
3. Louis and Henrietta Blaustein Women's Health Center, Department of Obstetrics and Gynecology; Sinai Hospital of Baltimore; Baltimore MD USA