No abstract available
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Estrogens, Conjugated (USP) / analysis*
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Estrone / analogs & derivatives*
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Estrone / analysis
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Evaluation Studies as Topic
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False Positive Reactions
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Feces / chemistry*
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Female
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Predictive Value of Tests
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Pregnancy
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Pregnancy Tests / veterinary*
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Pregnancy, Animal / physiology*
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Swine / physiology*
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Ultrasonography, Prenatal / veterinary*
Substances
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Estrogens, Conjugated (USP)
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Estrone
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estrone sulfate