Efficacy and Safety of Vitamin D3 (Cholecalciferol) Oral Solution Compared to Tablet and Capsule: A Randomized, Parallel-Design, Active-Controlled Study. GJMR. 2020;20(B5):1-6. Accessed February 5, 2026. https://testing.medicalresearchjournal.org/index.php/GJMR/article/view/2163