Tahasildar, K. K., and J. S. Shete. “The Clinical Profile of Obstructive Lung Diseases Patients Attending Tertiary Care Hospital in Nanded, Maharashtra: An Observational Study”. International Journal of Research in Medical Sciences, vol. 6, no. 12, Nov. 2018, pp. 3970-4, doi:10.18203/2320-6012.ijrms20184892.