[1]
Mirjada, M.R. et al. 2020. Association of Vitamin D Level and Forced Expiratory Volume in First Second in COPD Patients. Journal of Chittagong Medical College Teachers’ Association. 30, 2 (Jan. 2020), 22–25. DOI:https://doi.org/10.3329/jcmcta.v30i2.62579.