1. Trauma Research Center, Shahid Rajaee (Emtiaz) Trauma Hospital, Shiraz University of Medical Sciences, Shiraz, Iran.
2. Department of General Surgery, Shiraz University of Medical Sciences, Shiraz, Iran.
3. Department of Pathology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
4. Department of Internal Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
5. Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran.
6. Department of Orthopaedics, Sahlgrenska Hospital, Göteborg University, Gothenburg, Sweden.