Sultana, N. ., Ali, T. ., Bennoor, K. S. ., Hossain, M. A. ., Mahmud, M. B. ., Hassan, S. ., Nahar, S. B. ., Rosy, S. K. . and Anjum, S. . (2022) “Vitamin D3 supplementation on lung functions and exercise tolerance in D3 deficient asthma COPD overlap syndrome patients - A randomized controlled trial”, Journal of Bangladesh Society of Physiologist, 17(1), pp. 21–33. doi: 10.3329/jbsp.v17i1.63213.