1. Marie Curie Science Research Center, Greensboro, NC 27407, USA
2. Center for Advanced Spine Care of Southern Arizona, 4787 E Camp Lowell Drive, Tucson, AZ 85712, USA
3. Department of Orthopaedics, Fundación Universitaria Sanitas, Bogotá 111321, Colombia
4. Department of Orthopedics, Hospital Universitário Gaffre e Guinle, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro 21941-590, RJ, Brazil
5. Advanced Orthopaedics, 499 E. Central Pkwy, Ste. 130, Altamonte Springs, FL 32701, USA
6. Department of General and Specialized Surgery, Gaffrée e Guinle University Hospital, Federal University of the State of Rio de Janeiro (UNIRIO), Rio de Janeiro 22290-240, RJ, Brazil
7. Klinik für Orthopädie und Orthopädische Chirurgie Gebäude 37, EG, Zimmer 56, 66421 Homburg, Germany
8. Cellular and Molecular Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht P.O. Box 4144654839, Iran