1.
Numrah Shakeel Malik, Muhammad Umair, Farah Qasim, Ayesha Azam, Muhammad Muddassar, Rimsha Qasim. Does the COVID vaccine really help? A cross-sectional study to assess the positivity rate among Health Care Workers and staff members at tertiary care hospitals. Pak J Chest Med [Internet]. 2023Sep.2 [cited 2025Oct.30];29(3):329-36. Available from: https://www.pjcm.net/index.php/pjcm/article/view/829