Center for Drug Evaluation and Research, DIRM, FDA, Department of Health and Human Services, El Paso, Texas
Head of Spine Service, Orthopedic Department, Edith Wolfson Medical Centre, Israel
University of Catania, Oasi Research Institute – IRCCS, Troina, Italy
Orthopaedic Surgeon, Cebu Orthopaedic Institute, Cybergate Cebu City, Philippines
Department of Orthopedics and Traumatology ULSAM, Viana do Castelo, Portugal