vice president, professor, chief physician and doctoral supervisor of Tianjin Medical University Cancer Institute ＆ Hospital; Vice Chairman of the expert Committee on Pediatric malignant tumors (solid tumors) of the National Health Commission; former Chairman of the Pediatric Oncology Committee of the China Anti-Cancer Association; Vice Chairman of the Oncology Group of the Pediatric surgery Branch of the Chinese Medical Association; Vice Chairman of the Children's Oncology Committee of the China Research Hospital Society; Head of the National Neuroblastoma Cooperation Group, and Deputy Editor of the Chinese Journal of Pediatric Blood and Oncology; Chief scientific communication expert in the field of comprehensive diagnosis, treatment and basic research of solid tumor in children of China Association for Science and Technology, and head of key R & D program of the Ministry of Science and Technology; Tianjin Outstanding contribution expert; Vice President of Tianjin Hospital Association, head of Tianjin Child malignant tumor (solid tumor) expert Group; Chairman of Pediatric Oncology Committee of Tianjin Anti-Cancer Association; The head of the Department of Children's Oncology, Tianjin Medical University Cancer Institute ＆ Hospital, has been engaged in the clinical and basic work of malignant solid tumors in children for more than 30 years.