Changes in 25-hydroxyvitamin D3 level in children with Henoch-Schönlein purpura
ZHANG Yuan-Da, DONG Qing-Wei, LI Rong-Min, JI Chao-Yu, CHU Yong-Tao, MA Lei, ZHANG Yu
CJCP . 2017, (3): 292 -295 .  DOI: 10.7499/j.issn.1008-8830.2017.03.008