No abstract available
MeSH terms
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Age Factors
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Animals
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Aromatase / metabolism
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Cattle
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Estradiol / blood
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Estradiol / metabolism*
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Gonadotropins / physiology
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Humans
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Leydig Cells / metabolism
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Male
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Rats
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Sertoli Cells / metabolism
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Steroids / biosynthesis
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Testis / metabolism*
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Testosterone / metabolism
Substances
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Gonadotropins
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Steroids
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Testosterone
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Estradiol
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Aromatase