MILES, A A The concept of biological potency as applied to closely related antibiotics. [electronic resource] - Rendiconti - Istituto superiore di sanita 1953 - 163-87 p. digital Publication Type: Journal Article ISSN: 0370-5811 Subjects--Topical Terms: Anti-Bacterial AgentsAntibiotics, AntitubercularDermatologic AgentsHumans