mojtaba ahmadinejad department of surgery, madani hospital, alborz university of medical sciences, karaj, ir iran mozaffar hashemi department of surgery, alzahra university hospital, isfahan university of medical sciences, isfahan, ir iran abbas tabatabai department of surgery, alzahra university hospital, isfahan university of medical sciences, isfahan, ir iran shahram keykha department of emergency medicine, mashhad university of medical sciences, mashhad, ir iran zabihollah taleshi department of emergency medicine, alborz university of medical sciences, karaj, ir iran koorosh ahmadi department of emergency medicine, alborz university of medical sciences, karaj, ir iran; department of emergency medicine, alborz university of medical sciences, karaj, ir iran. tel: +98-9124806577, fax: +98-2634426979

a salimi department of forensic medicine and toxicology, iran university of medical sciences,tehran, iran a okazi department of forensic medicine and toxicology, tehran university of medical sciences, tehran, iran

zahra serati shiraz university of medi-cal sciences, shiraz, iran behzad haghighi aski shiraz university of medi-cal sciences, shiraz, iran ahmad ali amirghofran shiraz university of medi-cal sciences, shiraz, iran bahram ghasemzadeh shiraz university of medi-cal sciences, shiraz, iran gholam hossein ajami shiraz university of medi-cal sciences, shiraz, iran khashayar aflaki shiraz university of medi-cal sciences, shiraz, iran

Bahram Rasulian, Damoon Haghshenas, Mansour Esmailidehaj, Mohammad Ebrahim Rezvani, Mohammad Hossein Mosaddeghmehrjardi, Seyed Jalil Mirhosseini,