title: Discrepancy in Analysis of Penicillin in Blood by the Oxford Cup Method as Revealed by the Paper Disc Technique.
authors.forename: M B
authors.initials: MB
authors.lastname: Sherwood
authors.forename: E J
authors.initials: EJ
authors.lastname: DE Beer
mesh_terms: D001769:Blood; D006801:Humans; D010406:Penicillins
chemical_list: D010406:Penicillins