No abstract available
Publication types
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Animals
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Diterpenes
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Female
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Mammary Neoplasms, Experimental / chemically induced*
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Methylnitrosourea / antagonists & inhibitors*
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Nitrosourea Compounds / antagonists & inhibitors*
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Rats
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Retinyl Esters
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Time Factors
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Vitamin A / analogs & derivatives*
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Vitamin A / pharmacology
Substances
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Diterpenes
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Nitrosourea Compounds
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Retinyl Esters
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Vitamin A
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retinol acetate
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Methylnitrosourea