Pant, P., Thapa, S., Das, S. K. and Bam, N. (2019) “Serum Vitamin D Level in Chronic Obstructive Pulmonary Disease and its Relation with Severity: A Single Centre Study”, Journal of Institute of Medicine Nepal, 41(2), pp. 56–58. Available at: https://nepjol.info/index.php/JIOM/article/view/26552 (Accessed: 22 December 2024).