Modes of resistance to benzylpenicillin and ampicillin in twelve Klebsiella strains.
D000667:Ampicillin / Q000494:pharmacology*; D066298:In Vitro Techniques; D007709:Klebsiella / Q000187:drug effects* / Q000201:enzymology; D010400:Penicillin G / Q000494:pharmacology*; D010403:Penicillin Resistance; D010405:Penicillinase / Q000096:biosynthesis
D000667:Ampicillin; D010405:Penicillinase; D010400:Penicillin G