,Experimental production of penicillin in Kunming in the early 1940s

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In 1928,Sir Alexander Fleming made the profound discovery of penicillin.After approximately 10 years,the Oxford team,including Sir Howard Florey,Professor Est Chain,and their assistants,made progress in the methods of penicillin production,especially in extraction,purification,and assay.They then published their research in detail in The Lanceton August 16,1941.
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