Yao Jun, male, expert and chief physician of Qingdao Security Base Hospital of China People's Liberation Army, Dr. Liu Han, graduated from Harbin Medical University and went to Korea for further study. He studied under Park Kwok-ho, a professor at Busan University School of Medicine and a famous male plastic surgeon in Korea. After three years of further study, he returned to China to join the medical and health undertakings of the motherland's army, and worked in the PLA 30 1 Hospital and the PLA 41Hospital successively.