Coronavirus disease 2019 pandemic: what does wearing masks mean?

Chin Med J (Engl). 2020 Nov 20;133(22):2749-2750. doi: 10.1097/CM9.0000000000001016.

Yong Yang¹, Can Song^{2

3}, Han-Yang Wang¹, Yong-Kang Chen¹, Jia-Jia Chen¹, Jin Gu^{1

3

4}

¹ Gastrointestinal Cancer Center, Peking University Cancer Hospital, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China.
² School of Life Science, Tsinghua University, Beijing 100142, China.
³ Peking-Tsinghua Center for Life Science, Peking University International Cancer Center, Beijing 100142, China.
⁴ Department of Gastrointestinal Surgery, Peking University Shougang Hospital, Beijing 100144, China.

No abstract available

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