6. Patients with severe and failed to controlled diseases,including: suboptimal blood pressure control;suffering from myocardial ischemia or above grade I myocardial infarction, arrhythmias and Class I heart failure;activity or failure to control severe infections;liver disease such as cirrhosis, decompensated liver disease, chronic active hepatitis;poorly controlled diabetes (FBG>10mmol/L);urine protein≥++,etc.