1. Liver Cirrhosis Study Group, Department of Gastroenterology, General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, Liaoning, P.R. China
2. Postgraduate College, Jinzhou Medical University, Jinzhou, Liaoning P R. China
3. Department of Ultrasound, General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, Liaoning, P.R. China
4. Department of Nuclear Medicine, General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, Liaoning, P.R. China
5. The Liver Unit and Monarch Liver Lab, Cochin Gastroenterology Group, Ernakulam Medical Center, Kochi, Kerala, India
6. Medicina Interna 1, ARNAS Civico - Di Cristina - Benfratelli, Palermo, Italy