- Important organ function as defined by the following: cardiac ejection fraction ≥ 50%; electrocardiogram showed no obvious abnormalities; creatinine clearance rate calculated by using Cockcroft- Gault formula ≥40ml/min ; ALT/AST≤ 3×the institution normal upper limit; total bilirubin ≤2.0mg/dl; coagulation function: PT/ APPT<2 ×the institution normal upper limit; SpO2 >92%; Blood: hemoglobin>80g/L, ANC ≥ 1, PLT ≥ 50×109/L;