Harbin Institute of Technology. Chen, a math teacher at Harbin Institute of Technology, graduated from Guangzhou Medical College on 1997 and Southern Medical University on 20 10. He studied in the Microsurgery Center of the People's Liberation Army and the Plastic Surgery Department of Guangdong Provincial People's Hospital respectively, and was good at internal fixation of long bones of limbs, hip replacement, first aid and later functional reconstruction of hand injuries, diagnosis and treatment of peripheral vascular diseases, and microscopic examination.