Associations between vitamin D receptor gene polymorphisms and chronic spontaneous urticaria in Chinese Han population - Ma, Yiping; Xiang, Zhi; Yao, Xu; Li, Chengrang; Wu, Jianbing; Feng, Suying; Cui, Pangen; Lin, Lin (Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii, 2020)