Accuracy of cell-free Mycobacterium tuberculosis DNA testing in pleural effusion for diagnosing tuberculous pleurisy: a multicenter cross-sectional study oleh Wei-Li Du, Jian-Qin Liang, Xin-Ting Yang, Cheng-Jun Li, Qing-Feng Wang, Wen-Ge Han, Ye Li, Zhi-Hui Li, Dong-Mei Zhao, Fu-Dong Xu, Yan-Xiao Rong, Xiao-Jing Cui, Hui-Min Li, Feng Wang, Peng-Chong Liu, Dong-Lin Guo, Hai-Bin Wang, Xu-Ya Xing, Jia-Lu Che, Zi-Chen Liu, Na-Na Zhang, Kun Li, Yi Liu, Li Wang, Hai-Bo Wang, Nan-Ying Che