Sobia, Farah, Vaqar Ilahi Paracha, Muhammad Waseem, Raja Umer, and Atif Nawaz. “Impact of COVID-19 Infection on Outcome of Cardiac Surgery Patients in Tertiary Cardiac Care Hospital”. Pakistan Armed Forces Medical Journal 73, no. SUPPL-3 (December 21, 2023): S556–561. Accessed November 19, 2024. https://pafmj.org/PAFMJ/article/view/10536.