Prevalence of Pre-Extensively Drug-Resistant Tuberculosis (Pre XDR-TB) and Extensively Drug-Resistant Tuberculosis (XDR-TB) among Pulmonary Multidrug Resistant Tuberculosis (MDR-TB) at a Tertiary Care Center in Mumbai Journal title: Journal of Krishna Institute of Medical Sciences University Authors: Sameer Adwani , Unnati D. Desai , Jyotsna M. Joshi Subject(s): Medicine, Research & Experimental