In-vitro susceptibility of the Bacteroides fragilis group to cefoperazone, ampicillin, ticarcillin and amoxycillin combined with β-lactamase inhibitors

Abstract
A. L. BARRY, R. N. JONES, R. R. PACKER; In-vitro susceptibility of the Bacteroides fragilis group to cefoperazone, ampicillin, ticarcillin and amoxycillin comb