1. Department of Clinical Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
2. Liver Cirrhosis Study Group, Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
3. Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, China
4. Division of Epidemiology, The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China