New penicillins, cephalosporin C, and penicillinase.
D002511:Cephalosporins; D010405:Penicillinase; D010406:Penicillins; D013210:Staphylococcus / Q000494:pharmacology*
D002511:Cephalosporins; D010406:Penicillins; C025163:cephalosporin C; D010405:Penicillinase
PENICILLIN; PENICILLINACE; STAPHYLOCOCCUS/pharmacology