Biochimica et Biophysica Acta (BBA) - Enzymology and Biological Oxidation · 1965 · 35 citations · 7 references
Life SciencesMicrobiologyBacteriologyMedical MicrobiologyAntibiotic ResistanceAntimicrobial Susceptibility TestingBeta-lactam ResistancePenicillin Resistance
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Iodometric Assay of Penicillinase
C. J. PERRET · Nature · 1954 · 399 citations
A method for the assay of penicillin
N. G. Heatley · Biochemical Journal · 1944 · 349 citations · Full text