No abstract available
Publication types
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Letter
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Observational Study
MeSH terms
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Adult
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Aging / metabolism*
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Aging / pathology
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Follicle Stimulating Hormone / metabolism*
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Humans
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Luteinizing Hormone / metabolism*
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Male
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Middle Aged
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Organ Size
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Prospective Studies
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Semen Analysis
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Sperm Count
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Sperm Motility
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Spermatozoa / pathology
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Testis / pathology*
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Testosterone / metabolism*
Substances
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Testosterone
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Luteinizing Hormone
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Follicle Stimulating Hormone