APA Citation

Clapham, H. E., & Cook, A. R. (2021). Face masks help control transmission of COVID-19. Lancet Digit Health.

Chicago Style Citation

Clapham, Hannah E., and Alex R. Cook. "Face Masks Help Control Transmission of COVID-19." Lancet Digit Health 2021.

MLA Citation

Clapham, Hannah E., and Alex R. Cook. "Face Masks Help Control Transmission of COVID-19." Lancet Digit Health 2021.

Warning: These citations may not always be 100% accurate.