1. Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
2. Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
3. Road Traffic Injury Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
4. Tabriz University of Medical Sciences, Tabriz, Iran
5. Cancer Registry Office, Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
6. Tabriz Health Services Management Research Center, Tabriz University of Medical Sciences, Tabriz, Iran