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Ronald L. Horst
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Huxley, IA, US
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25, 28-dihydroxyergocalciferol and 1,25,28-trihydroxyergocalciferol...
Patent number
4,929,609
Issue date
May 29, 1990
Hoffmann-La Roche Inc.
Andrew D. Batcho
C07 - ORGANIC CHEMISTRY