Dr. Abhraneel Guha, Dr. Subhrojyoti Bhowmick, Dr. Aritra Chakrabarti, Dr. Subhrojyoti Bhowmick, Dr. Saibal Das, Dr. Rahul Khandelwal, Dr. Aditya Singh, Dr. Ajoy Krishna Sarkar, Anupam Das, Dr. Krishnangshu Ray and Dr. Sujit Kar Purkayastha 2021. Comparison Of In-Hospital Mortality Of COVID-19 Patients Between Those Who Were Vaccinated And Who Were Not: In-Hospital Mortality Of COVID-19 Patients Between Those Who Were Vaccinated And Who Were Not. National Journal of Integrated Research in Medicine. 12, 4 (Sep. 2021), 26–28. DOI:https://doi.org/10.53551/njirm.v12i4.3135.