1Interpretation of the Guidelines for Diagnosis of Syncope in Children (2016)HU Jin-wei, YAN Xiao-juan, WANG Yuan-fei, DONG Xiang-yuGUIDELINES UNDERSTANDING321-3252Treatment progress of pediatric respiratory extracorporeal life support: Interpretation of Indications for Pediatric Respiratory Extracorporeal Life SupportYANG Chun-feng, DAI Xin-lun, LI Yu-meiGUIDELINES UNDERSTANDING326-3293Poliovirus vaccine immunization strategy in China after the eradication of wild poliovirusSHEN Jun, ZHU Qi-rongSYMPOSIUM330-3324Continuing promotion of children's immunizationYANG Xi-qiangSYMPOSIUM333-3365Common clinical manifestations of adverse reactions caused by vaccination in children and their managementFANG FengSYMPOSIUM336-3406Immune response and safety evaluation of combined vaccinationYAO Wen-qing, LI Yan-wei, WANG Jing-yanSYMPOSIUM340-3437Vaccination for children with immune-associated diseasesSONG Hong-mei, XIAO JuanSYMPOSIUM343-3478Effect of BCG vaccination and the adverse reactionsLIU Er-yong, ZHOU Lin, ZHAO Shun-ying, LI Hui-minSYMPOSIUM347-3499Underlying disease spectrum of syncope in children and adolescents in the past 30 years and health economic analysis: A single center reportORIGINAL CONTRIBUTION350-35510Risk factors for retinopathy of prematurity: A meta-analysisLIN Yi, YAN Chao-yingORIGINAL CONTRIBUTION356-36011Study of enterococci from midstream urine in childrenCHEN Ye, XIE Yong-qiang, OU-YANG Shan, DENG Hui, LIAO Yu-ru, LI Ying-jieORIGINAL CONTRIBUTION361-36412Diagnostic significance of N-terminal pro-brain natriuretic peptide in acute phase of incomplete Kawasaki diseaseLIU Ya-ping, YANG Ting-ting, HU Xiu-fen, LU Hui-lingORIGINAL CONTRIBUTION365-36813Ovarian immature teratoma (OIT) with gliomatosis peritonei (GP) in children: A report of one case and review of the literatureORIGINAL CONTRIBUTION369-37214@@373-37515@@376-37816@@379-38517@@386-39018@@391-39519@@396-40020@@395,中插1-中插2 