“Does Vitamin D3 Supplementation Improve Ventilatory Function of Vitamin D Deficient COPD Patients? - A Randomized Controlled Trial : Vitamin D3 Supplementation and COPD”. Journal of the Medical College for Women & Hospital 21, no. 1 (June 21, 2025): 13–22. Accessed July 9, 2026. https://banglajol.info/index.php/JMCWH/article/view/79870.