Chakraborty Uddalak, Chandra Atanu
Department of Internal Medicine, College of Medicine and Sagore Dutta Hospital, Kolkata, India.
Department of Internal Medicine, R G Kar Medical College and Hospital, Kolkata, India.
Lancet. 2021 Jan 16;397(10270):e2. doi: 10.1016/S0140-6736(21)00041-6.