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Tatsuoka; Miyamoto Yakugaku Zasshi, 1949 , vol. 69, p. 294,297 Chem.Abstr., 1950 , p. 2513 Full Text Show Details Leach; Hunter Biochemical Preparations, 1953 , vol. 3, p. 111,114 Anm. 7 Full Text Show Details Crooks Chem.Penicillin, , S. 466