 Patient with hepatitis B or hepatitis C viral infection Patient with any of the following: hemoglobin 10 gL, white blood cell count 3.0 X 109L, platelet count 130 X 109L, ALT 2 times the upper limit of normal, AST 3 times the upper normal limit, total bilirubin 2 times the upper normal limit or creatinine 150 μmolL. 