Chua Alvin Qijia, Al Knawy Bandar, Grant Ben, Legido-Quigley Helena, Lee Wui-Chiang, Leung Gabriel M, Looi Mun-Keat, Maurer-Stroh Sebastian
Saw Swee Hock School of Public Health, National University of Singapore, Singapore.
Ministry of National Guard Health Affairs, Saudi Arabia.
BMJ. 2021 Mar 11;372:n486. doi: 10.1136/bmj.n486.