Dr. Yi Ji is a director and professor in Division of oncology, Department of Pediatric Surgery at the West China Hospital of Sichuan University in Chengdu, China. He received his MD from the Sichuan University. He received his PhD from Fudan University, Shanghai, China. His research is focused on the pathogenesis of vascular anomalies and pediatric solid tumors. His clinical interests are vascular anomalies, pediatric solid tumors, and pediatric critical care medicine.