1Chinese expert consensus on the diagnosis,treatment and management of hypertrophic cardiomyopathy in children(2025)Precision Diagnosis and Treatment of Pediatric Cardiomyopathy Collaborative Group,Cardiovascular Group,Society of Pediatrics,Chinese Medical Association, Heart Failure Collaborative Group,Cardiovascular Group,Society of Pediatrics,Chinese Medical Association, Inherited Metabolic Cardiomyopathy Collaborative Group,Cardiovascular Group,Society of Pediatrics,Chinese Medical Association, Editorial Board of Chinese Journal of Applied Pediatrics, LI Zi-pu, TIAN Jie, YANG Shi-weiGUIDELINES,STANDARDS AND CONSENSUS617-6362Expert consensus on the management of mucosal injury repair in childrenCommittee of Pediatric Allergy,China Maternal and Child Health Association, ZHANG Jian-jiGUIDELINES,STANDARDS AND CONSENSUS637-6443Interpretation of the 2024 edition of Update on Diagnosis and Management of Kawasaki Disease:A Scientific Statement From the American Heart AssociationJU Chen-hui, XIAO Yan-yan, GAO Lu, JIN Hong-fangGUIDELINES UNEDRSTANDING645-6514Interpretation of"Expert consensus on the diagnosis and treatment of macrolide-resistant Mycoplasma pneumoniae pneumonia in children"WANG Ying-shuo, ZHUANG Hai-ningGUIDELINES UNEDRSTANDING652-6555Several issues that should be paid attention to in children with severe pneumoniaFU Hong-min, LU QuanEDITORIAL656-6596Effect of changes in pathogens of severe pneumonia in children on the clinical diagnosis and treatmentDONG Xiao-yanSYMPOSIUM660-6667Evaluation model and early warning value of severe pneumonia in childrenZOU Ying-xue, WANG Xue-linSYMPOSIUM666-6698A new perspective on the assessment of respiratory hypoxia in childrenFU Hong-min, SUI Ming-ze, LU QuanSYMPOSIUM669-6739Research advancements and application prospect of machine learning in the field of pediatric severe pneumoniaDONG Mi-lan, LUO Zheng-xiuSYMPOSIUM673-67610Role and prospect of pulmonary rehabilitation in children with severe pneumoniaSU Miao-shang, ZHANG Hai-linSYMPOSIUM676-67911Progress in the diagnosis and treatment of pertussis complicated with severe pneumonia in childrenWANG Yu-qing, JIANG Wu-junSYMPOSIUM679-68312Progress in diagnosis and treatment of severe respiratory syncytial virus infection in childrenZHOU Min, WU Chao-fen, CHEN Li-naSYMPOSIUM683-68713Application of lung ultrasound in the diagnosis and clinical evaluation of severe pneumonia in childrenSUN Yi, ZHANG Hao-rongSYMPOSIUM687-69014Establishment of reference ranges for left ventricular functional parameters in neonatal echocardiography:a multicenter,prospective,observational studyYANG Jing-li, AN Yan-bin, WANG Jian-ping, HUANG Lie, DENG Bo-yin, FAN Ying, DONG Wen-hui, WANG Jian-hui, SHI YuanORIGINAL CONTRIBUTION691-69915Risk factors and prognostic analysis of delayed excretion of high-dose methotrexate in the treatment of pediatric medulloblastomaZHANG Jin, GONG Xiao-jun, SUN Yan-ling, DU Shu-xu, WU Wan-shui, WANG Tian-youORIGINAL CONTRIBUTION700-704 