Warraich, Imran Samee, Irfan Khan, Muhammad Abid, Sarah Fatima, Zareen Irshad, and Saima Hanif. “Clinico-Pathological Association of Haemoglobin At The Time of Presentation: A Predictive Tool of Survivorship in COVID-19”. Pakistan Armed Forces Medical Journal 72, no. 1 (March 2, 2022): 244–48. Accessed September 23, 2023. https://mail.pafmj.org/index.php/PAFMJ/article/view/5840.