Car Josip, Koh Gerald Choon-Huat, Foong Pin Sym, Wang C Jason
Centre for Population Health Sciences, Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore.
Department of Primary Care & Public Health, School of Public Health, Imperial College London, London, United Kingdom.
BMJ. 2020 Oct 20;371:m3945. doi: 10.1136/bmj.m3945.