S. Maroof, “COVID-19 VACCINE BREAKTHROUGH INFECTIONS AMONG HEALTH CARE WORKERS AND SUPPORT STAFF OF MILITARY INSTITUTES IN PAKISTAN – AN UPDATE”, Pak Armed Forces Med J, vol. 72, no. SUPPL-1, pp. S68–71, Mar. 2022, Accessed: Jan. 18, 2025. [Online]. Available: https://pafmj.org/PAFMJ/article/view/8295