beta-Lactam antibiotics--problems and solutions.
D000667:Ampicillin / Q000494:pharmacology; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D002473:Cell Wall / Q000187:drug effects; D002511:Cephalosporins / Q000494:pharmacology; D010406:Penicillins / Q000494:pharmacology
D000900:Anti-Bacterial Agents; D002511:Cephalosporins; D010406:Penicillins; D000667:Ampicillin