1.
Mirjada MR, Hassan MH, Khan MN, Ullah EE, Barua A, Chowdhury TT, Hasan KMA. Association of Vitamin D Level and Forced Expiratory Volume in First Second in COPD Patients. J Chittagong Med Coll Teachers Ass [Internet]. 2020 Jan. 24 [cited 2024 Nov. 24];30(2):22-5. Available from: https://banglajol.info/index.php/JCMCTA/article/view/62579