Association between expression of secretory leukocyte proteinase inhibitor in airway and lung function in patients with COPD 

HUANG Jinhua, DENG Guosheng, ZHANG Tingting, QIN Yinyin.
The Journal of Practical Medicine . 2021, (15): 1953 -1957 .  DOI: 10.3969/j.issn.1006⁃5725.2021.15.009