Currently serving as Vice President of Beijing Children's Hospital, Deputy Director of Beijing Institute of Pediatrics, Director of the National Center for Genetics and Birth Defects Prevention and Control at the National Children's Medical Center, Director of the Key Laboratory of Pediatric Major Diseases Research of the Ministry of Education, and Director of the Beijing Key Laboratory of Birth Defects Genetics Research. Received a Ph.D. in Medical Genetics from Sun Yat-sen University of Medical Sciences in 1997. Received the National Science Fund for Distinguished Young Scholars in 2005. Has long been engaged in research on the pathogenesis of genetic diseases and genetic diagnosis and genetic counseling. Main research directions: (1) Gene identification and pathogenesis of rare hereditary diseases such as albinism, (2) Lysosome-related organelles and diseases. Has published more than 130 papers, including 80 SCI papers, and served as editor-in-chief or associate editor of 6 monographs.