title: Beta-lactamase producing bacteroides species recovered from children: possible clue to failure of penicillin treatment.
mesh_terms: D001419:Bacteria / Q000187:drug effects*; D001439:Bacteroides / Q000201:enzymology* / Q000302:isolation & purification; D002648:Child; D006801:Humans; D014066:Palatine Tonsil / Q000382:microbiology*; D010406:Penicillins / Q000494:pharmacology* / Q000627:therapeutic use; D013291:Streptococcus / Q000187:drug effects; D014069:Tonsillitis / Q000188:drug therapy* / Q000517:prevention & control; D001618:beta-Lactamases / Q000096:biosynthesis*
chemical_list: D010406:Penicillins; D001618:beta-Lactamases