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Hasan, Mohammad Nayeem, Najmul Haider, Florian L. Stigler, Rumi Ahmed Khan, David McCoy, Alimuddin Zumla, Richard A. Kock, and Md. Jamal Uddin. "The Global Case-Fatality Rate of COVID-19 Has Been Declining Since May 2020." Am J Trop Med Hyg 2021.

Hasan, Mohammad Nayeem, et al. "The Global Case-Fatality Rate of COVID-19 Has Been Declining Since May 2020." Am J Trop Med Hyg 2021.