1. Department of Endocrinology, the First Affiliated Hospital of Guangxi Medical University, Nanning, China.
2. Department of Cardiology, and the First Affiliated Hospital of Guangxi Medical University, Nanning, China.
3. Department of Geriatric Gastroenterology, the First Affiliated Hospital of Guangxi Medical University, Nanning, China.
4. Office of Nursing, Guangxi Medical University, Nanning, China.
5. Department of Nursing, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.