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A Study of Gramicidin in the Treatment of Chronic Streptoccocic Bovine Mastitis and Its Bacterial Action on the Streptococci in Vitro

出版	Michigan State College of Agriculture and Applied Science. Department of Bacteriology, 1941
URL	http://books.google.com.hk/books?id=L0KgUVokP1kC&hl=&source=gbs_api