Sana Ahmad, A. S. Khan, S. M. Awais, M. Raza, and S. O. Farooq. “Serum Vitamin D Levels of Oral Squamous Cell Carcinoma Patients of KPK”. ADVANCES IN BASIC MEDICAL SCIENCES, vol. 7, no. 2, Dec. 2023, pp. 56-59, doi:10.35845/abms.2023.2.245.