APA-viite

Hassan, Z., Hashim, M. J., & Khan, G. (2020). Population risk factors for COVID-19 deaths in Nigeria at sub-national level. Pan Afr Med J.

Chicago-tyylinen lähdeviittaus

Hassan, Zubaida, Muhammad Jawad Hashim, ja Gulfaraz Khan. "Population Risk Factors for COVID-19 Deaths in Nigeria At Sub-national Level." Pan Afr Med J 2020.

MLA-viite

Hassan, Zubaida, Muhammad Jawad Hashim, ja Gulfaraz Khan. "Population Risk Factors for COVID-19 Deaths in Nigeria At Sub-national Level." Pan Afr Med J 2020.

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