title: The effect of beta-lactamases of varying origin on different types of cephalosporins. Previously announced contribution to discussion.
mesh_terms: D000581:Amidohydrolases / Q000378:metabolism; D001419:Bacteria / Q000201:enzymology*; D002510:Cephalosporinase / Q000378:metabolism; D002511:Cephalosporins / Q000494:pharmacology*; D004352:Drug Resistance, Microbial; D008826:Microbial Sensitivity Tests; D010405:Penicillinase / Q000378:metabolism
chemical_list: D002511:Cephalosporins; D000581:Amidohydrolases; D002510:Cephalosporinase; D010405:Penicillinase