Hanif, Faisal, Muhammad Haroon, Muhammad Imran Khan, Muhammad Atiq, Ahmed Raza, and Shazia Asim. “Clinical Outcomes of HPB Surgical Patients During COVID-19 Pandemic”. Journal of the Pakistan Medical Association 72, no. 10 (September 15, 2022): 2003–2008. Accessed July 21, 2024. https://ojs.jpma.org.pk/index.php/public_html/article/view/4290.