1. Department of Infectious Disease, Qingdao No. 6 People's Hospital, Qingdao, Shandong 266033, P.R. China
2. Blood Purification Center, Qingdao No. 6 People's Hospital, Qingdao, Shandong 266033, P.R. China
3. Department of Physical Therapy, Qingdao No. 6 People's Hospital, Qingdao, Shandong 266033, P.R. China
4. School of Clinical Medicine, QingDao University Medical College, Qingdao, Shandong 266071, P.R. China
5. Department of Eight Areas of Liver Disease, Qingdao No. 6 People's Hospital, Qingdao, Shandong 266033, P.R. China
6. Outpatient Department, Qingdao No. 6 People's Hospital, Qingdao, Shandong 266033, P.R. China