1. Liver Cirrhosis Study Group, Department of Gastroenterology, General Hospital of Shenyang Military Area, Shenyang, Liaoning, China (mainland)
2. Department of Oncology, General Hospital of Shenyang Military Area, Shenyang, Liaoning, China (mainland)
3. Medical Ethical Committee, General Hospital of Shenyang Military Area, Shenyang, Liaoning, China (mainland)