Cheng Kar Keung, Lam Tai Hing, Leung Chi Chiu
Institute of Applied Health Research, University of Birmingham B15 2TT, UK.
School of Public Health. The University of Hong Kong, Hong Kong, Special Administrative Region, China.
Lancet. 2022 Apr 30;399(10336):e39-e40. doi: 10.1016/S0140-6736(20)30918-1. Epub 2020 Apr 16.