M. P. Sawant, S. L. Padwal, A. S. Kale, H. N. Pise, and R. M. Shinde, “Study of drug prescription pattern among COPD patients admitted to medicine in-patient department of tertiary care hospital”, Int J Basic Clin Pharmacol, vol. 6, no. 9, pp. 2228–2232, Aug. 2017.