shahram paydar trauma research center, shiraz university of medical sciences, shiraz, iran. sedigheh shokrollahi trauma research center, shiraz university of medical sciences, shiraz, iran. shahram jahanabadi trauma research center, shiraz university of medical sciences, shiraz, iran. fariborz ghaffarpasand trauma research center, shiraz university of medical sciences, shiraz, iran. zahed malekmohammadi trauma research center, shiraz university of medical sciences, shiraz, iran. armin akbarzadeh student research committee, shiraz university of medical sciences, shiraz, iran.

مسعود شریفی masoud sharifi public health school, qazvin university of medical sciences, qazvin, iranدانشکده بهداشت و پیراپزشکی, دانشگاه علوم پزشکی قزوین, قزوین نرگس رضا پور لشگریان فرد nargess rezapour lashgarianfard سمیه میرزایی کوشالی somayyeh mirzay coushaly الهام عسگری elham asgary ندا روحی neda rouhy محمد امان mohammad aman محمد امینی