1. Department of General Surgery, 971st Naval Hospital of the Chinese People's Liberation Army, Qingdao, Shandong Province, P. R. China
2. Department of Hyperbaric Oxygen, 971st Naval Hospital of the Chinese People's Liberation Army, Qingdao, Shandong Province, P. R. China
3. Department of Endocrinology, 971st Naval Hospital of the Chinese People's Liberation Army, Qingdao, Shandong Province, P. R. China