Adhikari UR, Gupta S, Bhattacharjee S. COVID-19 infection among nursing personnel: a retrospective survey in Kolkata, West Bengal. Int J Community Med Public Health [Internet]. 2022 May 27 [cited 2025 Apr. 26];9(6):2684-90. Available from: https://www.ijcmph.com/index.php/ijcmph/article/view/9823