Effect of a comprehensive programme to provide universal access to care for sputum-smear-positive multidrug-resistant tuberculosis in China: a before-and-after study oleh Renzhong Li, MS, Yunzhou Ruan, PhD, Qiang Sun, PhD, Xiexiu Wang, MS, Mingting Chen, MS, Hui Zhang, PhD, Yanlin Zhao, PhD, Jin Zhao, MS, Cheng Chen, MS, Caihong Xu, MS, Wei Su, MS, Yu Pang, PhD, Jun Cheng, MS, Junying Chi, MS, Qian Wang, MS, Yunting Fu, MS, Shitong Huan, MS, Lixia Wang, MS, Dr. Yu Wang, PhD, Daniel P Chin, MD