Letter: Contaminated beta-lactamase and blood cultures.
D000327:Adsorption; D000581:Amidohydrolases / Q000032:analysis; D001409:Bacillus cereus / Q000201:enzymology; D001769:Blood; D003470:Culture Media; D005374:Filtration; D010405:Penicillinase / Q000032:analysis
D003470:Culture Media; D000581:Amidohydrolases; D010405:Penicillinase