Association of vitamin D level with asthma control and pulmonary function in asthmatic children aged 4-12 years
XIU Xiao-Ying, CUI Yu-Xia, HUANG Yu-Ying, FAN Li, YUAN Jun, TIAN Zhu-Li
CJCP . 2018, (6): 461 -464 .  DOI: 10.7499/j.issn.1008-8830.2018.06.006