Ralph Ravikar, Faiz Mohammad Abul, Sharma Sanjib Kumar, Ribeiro Isabela, Chappuis François
Department of Internal Medicine, Christian Medical College, Vellore, Tamil Nadu, 632004, India
Dev Care Foundation, Dhaka-1209, Bangladesh.
BMJ. 2022 Jan 7;376:e057926. doi: 10.1136/bmj-2020-057926.