"Are you a robot?". Bloomberg (به انگلیسی). 2020-06-03. Retrieved 2020-06-04. {{cite web}}: Cite uses generic title (help)نگهداری یادکرد:تاریخ و سال (link)
Ghafari, M. , Hosseinpour, S. , Rezaee-Zavareh, M.S. et al. A quantitative evaluation of the impact of vaccine roll-out rate and coverage on reducing deaths: insights from the first 2 years of COVID-19 epidemic in Iran. BMC Med 21, 429 (2023). https://doi.org/10.1186/s12916-023-03127-8