No abstract available
MeSH terms
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Breast Neoplasms / analysis*
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Estradiol / analysis*
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Female
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Humans
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Mass Spectrometry
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Radioimmunoassay
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Receptors, Estrogen / analysis
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Receptors, Progesterone / analysis
Substances
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Receptors, Estrogen
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Receptors, Progesterone
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Estradiol