1. Department of UltrasoundThe Southern Building, Chinese People's Liberation Army General HospitalBeijing China
2. Department of RadiologyMassachusetts General Hospital, Harvard Medical SchoolBoston Massachusetts USA
3. Department of PathologyMassachusetts General Hospital, Harvard Medical SchoolBoston Massachusetts USA
4. Department of Radiology, Division of Abdominal ImagingUniversity of Florida College of MedicineGainesville Florida USA
5. Autoimmune and Cholestatic Liver CenterMassachusetts General Hospital, Harvard Medical SchoolBoston Massachusetts USA