Sana Ahmad, Khan, A.S., Awais, S.M., Raza, M. and Farooq, S.O. 2023. Serum vitamin D levels of Oral squamous cell carcinoma patients of KPK. ADVANCES IN BASIC MEDICAL SCIENCES. 7, 2 (Dec. 2023), 56–59. DOI:https://doi.org/10.35845/abms.2023.2.245.