Correlation Between Vitamin D and Glycated Hemoglobin (HbA1c) in Patients With Type 2 Diabetes Mellitus: A Single Center Cross-Sectional Study: Vitamin D and Glycated Hemoglobin (HbA1c) in Patients With Type 2 Diabetes Mellitus. J. Med. Coll. Women Hosp. 2025, 21 (1), 32-37. https://doi.org/10.3329/jmcwh.v21i1.80951.