DOLATI-SOMARIN, Amirhossein, and Bahareh ABD-NIKFARJAM. 2021. “The Reasons for Higher Mortality Rate in Opium Addicted Patients With COVID-19: A Narrative Review”. Iranian Journal of Public Health 50 (3), 470-79. https://doi.org/10.18502/ijph.v50i3.5587.