Methodological comparison of bronchoalveolar lavage fluid-based detection of respiratory pathogens in diagnosis of bacterium/fungus-associated pneumonia in critically ill patients oleh Luwen Zhang, Fanbo Lu, Yuerong Wang, Yuerong Wang, Juanjuan Ji, Yuanhong Xu, Ying Huang, Min Zhang, Moyan Li, Jinxing Xia, Bo Wang