Clinical significance of the serum neutrophil gelatinase⁃associated lipocalin in chronic obstructive pulmo⁃nary disease
CHEN Xingru, WANG Daoxin
The Journal of Practical Medicine . 2020, (21): 2931 -2936 .  DOI: 10.3969/j.issn.1006⁃5725.2020.21.009