Devinder Kumar Vohra, Singh, N., Manchanda JK, Sanjeev Davey, Arvind Trivedi, Anuradha Dave and Kayanat Nasser (2022) “A comparative study of wave 1 and 2 mortality factors among COVID-19 patients in a level 3 medical college hospital in Saharanpur India”, Asian Journal of Medical Sciences, 13(5), pp. 1–6. doi: 10.3126/ajms.v13i5.41558.