Li Guowei, Lian Wanmin, Qu Hongying, Li Ziyi, Zhou Qiru, Tian Junzhang
Center for Clinical Epidemiology and Methodology, Guangdong Second Provincial General Hospital, Guangzhou, China.
Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada.
Nat Med. 2021 Jun;27(6):936-937. doi: 10.1038/s41591-021-01376-9.