Chakravorty, Subarna. “Vaccines Against SARS-Cov-2: An Unprecedented Scientific Triumph and a Source of Hope in the Pandemic ”. The Physician 6, no. 3 (December 30, 2020): 1-3. Accessed March 28, 2024. https://physicianjnl.net/index.php/phy/article/view/91.