Ishaq, B. H. ., Khan, Z. ., Ahmad, S. ., Muhammad, P. ., Mustafa, A. ., & Khan, S. . (2022). Selected Vitamins and Trace Elements Support Immune Function by Strengthening Epithelial Barriers and Cellular and Humoral Immune Responses: Implications for Pulmonary Health and Disease Management - A Systematic Review. Pakistan Journal of Chest Medicine, 28(3), 395–401. Retrieved from https://pjcm.net/index.php/pjcm/article/view/874