1. Pediatric Department, Orthopedic Hospital of Speising, 1130 Vienna, Austria
2. National Medical Research Center for Traumatology and Orthopedics n.a. G.A. Ilizarov, 640014 Kurgan, Russia
3. Ibn Zohr Diagnostic Institute of Radiology, Tunis 1003, Tunisia
4. Surgical Outpatient Clinic of Landesklinikum Hospital, 3400 Klosterneuburg, Austria
5. Center of Pathobiochemistry and Genetics, Medical University of Vienna, 1090 Wien, Austria
6. Department of Neurology, Yale School of Medicine (USA), New Haven, CT 06510, USA
7. Policlinic at Národní, 110 00 Prague, Czech Republic