Kakarla, B., Boddula, R.P. and Gongati, P. 2016. Relation between body mass index, forced expiratory volume in one second and 6 minute walk test in stable COPD patients. International Journal of Research in Medical Sciences. 4, 12 (Dec. 2016), 5144–5148. DOI:https://doi.org/10.18203/2320-6012.ijrms20163992.