Association Analysis of Vitamin D Receptor Gene Polymorphisms in Chinese Population with Asthma - Fang, Wen-Liang; Gao, Lin-Bo; Liang, Wei-Bo; Xue, Hui; Bai, Peng; Lv, Mei-Li; Wang, Yan-Yun; Zhou, Bin; Zhang, Lin (Iranian Journal of Allergy, Asthma and Immunology)