Cephalosporins.
D000284:Administration, Oral; D000818:Animals; D002511:Cephalosporins / Q000145:classification / Q000266:history / Q000494:pharmacology / Q000627:therapeutic use*; D004352:Drug Resistance, Microbial; D049673:History, 20th Century; D006801:Humans; D007275:Injections, Intravenous
D002511:Cephalosporins