1. Liver Cirrhosis Group, Department of Gastroenterology, General Hospital of Northern Theater Command (Formerly General Hospital of Shenyang Military Area), Shenyang, China
2. Department of Clinical Laboratory, The First Hospital of Lanzhou University, Lanzhou, China
3. Department of General Surgery, General Hospital of Northern Theater Command (Formerly General Hospital of Shenyang Military Area), Shenyang, China
4. Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, China
5. Faculdade de Medicina de Botucatu UNESP, Campus de Botucatu, S/N, Botucatu, SP, Brazil
6. Department of Internal Medicine, ARNAS Civico, Palermo, Italy