Chatki, Pankaj, and Sana Tabassum. 2021. “Juxtaposition on Discrete Covid-19 Vaccines: For Rudimentary and Pivotal Cognizance”. International Journal of Advancement in Life Sciences Research 4 (4), 1-6. https://doi.org/https://doi.org/10.31632/ijalsr.2021.v04i04.001.