Correlation of serum vitamin D level with pulmonary function related factors in adult asthma

ZENG Fanrui，ZHANG Linghui，SHA Hang，Liu Yongmou，WU Juan

Tianjin Medical Journal . 2015, (12): 1416 -1419 . DOI: 10.11958/j.issn.0253-9896.2015.12.019