1. Department of Geriatric Medicine, Jiangyin Hospital Affiliated to Nantong University, Jiangyin, Jiangsu, China (mainland)
2. Department of Intensive Care Unit, Jiangyin Hospital Affiliated to Nantong University, Jiangyin, Jiangsu, China (mainland)
3. Department of Hepatobiliary Surgery, Jiangyin Hospital Affiliated to Nantong University, Jiangyin, Jiangsu, China (mainland)
4. Department of Hepatobiliary Surgery, Jiangyin Hospital Affiliated to Nantong University, Jiangyin, Jiangsu, China (mainland)