Quality control for maximal expiratory flow-volume curve as a pulmonary function test in school-age children
WANG Qun, REN Yi-Xin, LIU Yong-Ge, HUANG Hui-Jie, XIANG Li
CJCP . 2015, (6): 590 -595 .  DOI: 10.7499/j.issn.1008-8830.2015.06.013