[Semisynthetic pencillins and cephalosporins].
D002511:Cephalosporins / Q000138:chemical synthesis / Q000494:pharmacology*; D010406:Penicillins / Q000138:chemical synthesis / Q000494:pharmacology*
D002511:Cephalosporins; D010406:Penicillins
Halbsynthetische Penicilline und Cephalosporine