Mass masking in the COVID-19 epidemic
people need guidance
text
ph
www.thelancet.com
Published online March 2, 2020
monographic
eng
Chi Chiu Leung, Tai Hing Lam, Kar Keung Cheng
Coronavirus Infections
prevention and control
Coronavirus Infections
transmissions
Masks
supply and distribution
World Health Organization
COVID-19
Face Masks
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7133583/pdf/main.pdf
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7133583/pdf/main.pdf
200428
20200806155453.0
D0001C000024