Vaidiyanathan B, Dhanger S, Raajesh J, Bhat R, Natrajan P, Paulose D, Remadevi R. To Determine the Clinical Efficacy of COVID Vaccine in Post Vaccinated Individuals with Severe Pneumonia in Preventing ICU Mortality in a COVID Designated Tertiary Care Centre: A Retrospective Study. Arch Anesth & Crit Care. 2022;8(3):208-212.