Khani, Ali, Farnoosh Ebrahimzadeh, Alireza Mohammadzadeh Shabestari, Parisa Eshaghizadeh, Soheila Aminzadeh, and majid taati moghadam. 2022. “An Investigation of the Successful Efforts of Iran in Decreasing Delta Variant of COVID-19 After about Two Years of Conflict With COVID-19 Pandemic”. Iranian Red Crescent Medical Journal 24 (4). https://doi.org/10.32592/ircmj.2022.24.4.1721.