A study of drug utilization in patients with chronic obstructive pulmonary disease (COPD) in Mahavir institute of medical sciences, vikarabad, Telangana state. Int. J. of Res. in Pharmacology &Pharmacotherapeutics [Internet]. 2019 Nov. 4 [cited 2026 Mar. 12];8(4):423-6. Available from: https://ijrpp.com/ijrpp/article/view/660