Am J Med. 1985 Jun 7;78(6A):41-6. doi: 10.1016/0002-9343(85)90100-7.
Effects of imipenem-cilastatin, ertapenem, piperacillin-tazobactam, and ceftriaxone treatments on persistence of intestinal colonization by extended-spectrum-beta-lactamase-producing Klebsiella pneumoniae strains in mice.