1. Department of Gastroenterology, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang, China (mainland)
2. Department of Geriatrics, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang, China (mainland)
3. Division of Hypothalamic Research, Department of Internal Medicine, UT Southwestern Medical Center, Dallas, TX, China (mainland)