1From Henoch-Sch(o)nlein purpura to IgA vasculitis:a newinsight of pathogenesisGAO Chun-lin, XIA Zheng-kunSYMPOSIUM12-162Diagnosis and treatment of IgA vasculitis in childrenFU Tong, DU YueSYMPOSIUM17-213Monitoring and early biomarkers of kidney injury in chil-dren with IgA vasculitisSHEN QianSYMPOSIUM21-244Clinicopathological features and prognosis of renal in-volvement in children with IgA vasculitisQIU Li-ruSYMPOSIUM24-295Treatment for renal damage in children with IgA vasculitisWANG Hui, LIANG YingSYMPOSIUM29-336Childhood IgA vasculitis with nephritis and IgA nephropa-thyWANG FangSYMPOSIUM33-367Diagnosticvalue of expert consensus on the diagnosis of hypertrophic cardiomyopathy in Chinese children:A do-mestic multicenter studyCooperation Group of Precision Diagnosis and Treatment of Cardiomyopathy in Children,the Subspecialty Group of Cardiology,the Society of Pediatrics,Chinese Medical Association, Editorial Board of Chinese Journal of Practical PediatricsORIGINAL CONTRIBUTION37-448Detection of Helicobacter pylori and host CYP2C19 genotypes in children with gastric juice real-time polymerase chain reactionLI Dong-dan, PENG Xian-hui, FANG Yong-liORIGINAL CONTRIBUTION45-509Correlations between the clinical characteristics and the onset age of childhood-onset systemic lupus erythemato-susZHANG Yu, WANG Li, XU LiORIGINAL CONTRIBUTION51-5410A retrospective study of 357 colonoscopy in childrenWANG Yang, SUN MeiORIGINAL CONTRIBUTION55-58