Role of bronchoalveolar lavage fluid（BALF）metagenome next⁃generation sequencing in diagnosis of severe community⁃acquired pneumonia in children 

YAO Zhongwei, LI Meijin, WANG Tao, NIE Chuan, WU Xiaowu, ZHENG Yi′nan.
The Journal of Practical Medicine . 2021, (9): 1203 -1206 .  DOI: 10.3969/j.issn.1006⁃5725.2021.09.022