1. Department of Geriatrics, The Third People’s Hospital of Nantong City, Nantong, Jiangsu, China (mainland)
2. Department of Emergency, The Third People’s Hospital of Nantong City, Nantong, Jiangsu, China (mainland)
3. Department of Gastroenterology, The Third People’s Hospital of Nantong City, Nantong, Jiangsu, China (mainland)