Dr Sobhya Karamullah, Dr Serwat Anjum, Dr Ghaffar Dars, and Dr Sanobar Baloch. “SERUM VITAMIN D LEVELS IN COVID PNEUMONIA PATIENTS ADMITTED TO ICU: CORRELATION WITH SEVERITY AND OUTCOME”. Journal of Population Therapeutics and Clinical Pharmacology 31, no. 9 (September 30, 2024): 2815–2825. Accessed September 30, 2026. https://www.jptcp.com/index.php/jptcp/article/view/8413.