1Paying attention to pulmonary vascular diseases in childrenLIU Han-minEDITORIAL678-6802Development and anatomicophysiological characteristics of pulmonary vasculatureWANG Ya-ru, JIN Hong-fangNATIONAL HEALTH ASSISTING ALL-ROUND WELL-OFF·SYMPOSIUM681-6833Congenital pulmonary vascular diseaseLI Hai-yan, CHEN Bo, ZHANG Hai-linNATIONAL HEALTH ASSISTING ALL-ROUND WELL-OFF·SYMPOSIUM684-6884Pediatric pulmonary hypertensionWANG Wen-di, FAN Wen-wenNATIONAL HEALTH ASSISTING ALL-ROUND WELL-OFF·SYMPOSIUM688-6935Pulmonary embolism in childrenZHAO De-yu, ZHANG Jia-minNATIONAL HEALTH ASSISTING ALL-ROUND WELL-OFF·SYMPOSIUM693-6996Pulmonary vasculitis in childrenWEI Qing, NONG Guang-minNATIONAL HEALTH ASSISTING ALL-ROUND WELL-OFF·SYMPOSIUM699-7047Imaging diagnosis of pulmonary vascular diseases in childrenDUAN Xiao-min, YU TongNATIONAL HEALTH ASSISTING ALL-ROUND WELL-OFF·SYMPOSIUM704-7118Causes and characteristics of 637 children with congenital pulmonary vascular disease in the Second Affiliated Hospital of Wenzhou Medical University from 2010 to 2019SHI Lin-wei, LYU Fang-fang, LI Hai-yanORIGINAL CONTRIBUTION712-7169Clinical diagnosis and treatment analysis of congenital pulmonary arteriovenous malformation in childrenZHANG Shu-lan, TIAN Man, BAO Yu-lingORIGINAL CONTRIBUTION717-72110A cross-sectional survey and analysis of childhood allergic diseases in two communities of Yangpu District,ShanghaiXU Jing, WANG Xiao-qiu, LI Wen-xiuORIGINAL CONTRIBUTION722-72611Changes of plasma endotoxin in children with craniocerebral injury and its clinical significanceCUI Tian-tian, GUAN Wen-he, WANG Li-jieORIGINAL CONTRIBUTION727-73012Expression of miRNA in the lung in infants and young childrenZOU Xin-yi, ZHANG Hang-hu, LI Cai-xueORIGINAL CONTRIBUTION731-735 