1. Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, Hengyang, Hunan, China.
2. Jiangsu College of Nursing, Huai'an, Jiangsu, China.
3. Clinical Anatomy & Reproductive Medicine Application Institute, University of South China, Hengyang, Hunan, China.