[1]
Shoukat, S., Irshad, S., Fida, N., Mustafa, A., Shah, R. and Khan, M. 2022. Impact of Vitamin D on Respiratory Function and Immune Health on Patients with Chronic Obstructive Pulmonary Disease: A Systematic Review. Pakistan Journal of Chest Medicine. 28, 4 (Dec. 2022), 522–529.