The diagnostic and application value of bronchofiberscopy and bronchoalveolar lavage in children with chronic pneumonia
WU Hui-fang, ZHANG Jing-li, LIU Xiao-juan, LIU Xin-feng, ZHANG Zhong-ping, DUAN Chen-chu
Journal of Hebei Medical University . 2021, (1): 54 -59 .  DOI: 10.3969/j.issn.1007-3205.2021.01.012