[1] University of Thessalia,Department of Orthopaedic Surgery, Faculty of Medicine, School of Health Sciences
[2] Center for Research and Technology,Department of Orthopedics
[3] Thessaly (CERETETH),Center for Health Services Management and Evaluation, Faculty of Nursing
[4] Department of Biomedical Research & Technology,Department of Biomathematics, Faculty of Medicine, School of Health Sciences
[5] NIMITS Hospital,The Institute for Clinical Research and Health Policy Studies
[6] University of Athens,undefined
[7] University of Thessalia,undefined
[8] Tufts Medical Center,undefined
[9] Tufts University School of Medicine,undefined