Table 1: Criteria for inclusion and exclusion of studies.

a. Inclusion criteria
  1. A. baumannii is a strain for microbiological assessment
  2. Full text article
  3. Drug-resistance data for imipenem
  4. MDR A. baumannii
b. Exclusion criteria
  1. Review articles
  2. Congress abstracts
  3. Studies reported in languages other than English or Persian
  4. Articles available only in abstract form