Significance of matrix metalloproteinase⁃9 and matrix metalloproteinase tissue inhibitor 1 in progression of respiratory syncytial virus bronchiolitis to asthma
KANG Ping, SUN Xiaomin, ZHAO Shaocong, FENG Yichuan, LI Yi
The Journal of Practical Medicine . 2020, (22): 3135 -3139 .  DOI: 10.3969/j.issn.1006⁃5725.2020.22.021