Sajj , Abir Bin, et al. “Vitamin D Status Among Patients With Dry Eye Syndrome Attended In Bangabandhu Sheikh Mujib Medical University (BSMMU)”. The Journal of Ad-Din Women’s Medical College , vol. 11, no. 2, July 2023, pp. 3-8, doi:10.3329/jawmc.v11i2.70477.