Mazloomy Mahmoodabad, Sayed Saeed, Mohammad Saeed Jadgal, Iraj Zareban, and Hossein Fallah Zadeh. 2019. “The Determinants of Salivary Cotinine Concentration in Smokeless Tobacco Users”. Open Access Macedonian Journal of Medical Sciences 7 (5):810-15. https://doi.org/10.3889/oamjms.2019.174.