The LancetVolume 395, Issue 10228, 21–27 March 2020, Page 945CorrespondenceMass masking in the COVID-19 epidemic: people need guidanceAuthor links open overlay panelChi Chiu Leung a, Tai Hing Lam b, Kar Keung Cheng cShow moreShareCitehttps://doi.org/10.1016/S0140-6736(20)30520-1Get rights and contentPrevious article in issueNext article in issueRecommended articlesCited by (0)View Abstract© 2020 Elsevier Ltd. All rights reserved.