Sana, M. ., Liaquat, S. ., Haidar Zaidi, S. S., & Ghafoor, M. T. (2023). HbA1C- Biomarker of COVID-19 Severity in Patients with Diabetes Mellitus. Annals of Punjab Medical College, 17(1), 21–24. https://doi.org/10.29054/apmc/2023.1391