CJCP     2021 23 (8):  797-801    ISSN: 1008-8830  CN: 43-1301/R Clinical effect of alfacalcidol in children with Henoch-Sch?nlein purpura: a prospective randomized controlled trial FU Qiang, SHI Ming-Fang, CHEN Ying Department of Pediatrics, First People's Hospital of Yibin, Yibin, Sichuan 644000, China Received: 2021-05-29  Revised: null  Online: null Supporting info