title: The effect of agar depth in the plate method for the assay of penicillin.
authors.forename: W
authors.initials: W
authors.lastname: HAYES
mesh_terms: D000362:Agar; D001681:Biological Assay; D001860:Bone Plates; D010406:Penicillins; D012015:Reference Standards
chemical_list: D010406:Penicillins; D000362:Agar
keywords: PENICILLIN/standardization