No abstract available
MeSH terms
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Animals
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Coitus
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Estrus
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Female
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Fertility Agents, Male / physiology
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Functional Laterality
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Gonadal Steroid Hormones / physiology*
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Humans
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Insemination, Artificial
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Lymphoma, Non-Hodgkin
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Male
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Pregnancy
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Pregnancy Complications
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Prostatic Neoplasms
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Racial Groups
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Research Design
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Seasons
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Sex Ratio*
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Statistics as Topic
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Twins
Substances
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Fertility Agents, Male
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Gonadal Steroid Hormones