- 2. Patients with indications for immunosuppressive treatment at inclusion: serum alanine transaminase(ALT) or aspartate transaminase(AST) ≥10 fold upper limit of normal(ULN)，or serum ALT or AST≥ 5 fold ULN and γglobulin level ≥ 2 fold ULN, or bridging necrosis or multiacinar necrosis on histological examination.