Tian Jun, MD, chief physician and professor, is currently a member of the National Public Relations Research Group on Artificial Liver and Blood Purification, a member of the Heavy Liver Group of the Hepatology Branch of the Chinese Medical Association, a deputy director of the Surgery Branch of the Shandong Medical Association, a deputy director of the Organ Transplantation Society of the Chinese Medical Association, and a deputy director of the Blood Purification Branch of the Chinese Biomedical Engineering Society. 200 1 Director of Blood Purification Organ Transplantation Center of Qilu Hospital.