Fig. 1From: Sulbactam combined with tigecycline improves outcomes in patients with severe multidrug-resistant Acinetobacter baumannii pneumoniaMDR-AB inclusion and exclusion flow chart. *Severe immunodeficiency patients: long-term use of immunosuppressants, solid organ transplant patients, recent use of high-dose methylprednisolone drugs (more than 280 mg/w), hematological malignancies, and patients with severe agranulocytosis. MDR-AB, Multi-drug resistant Acinetobacter baumanniiBack to article page