No abstract available
MeSH terms
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Age Factors
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Aggression / drug effects*
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Animals
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Animals, Newborn
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Behavior, Animal / drug effects*
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Castration*
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Critical Period, Psychological
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Humans
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Injections, Subcutaneous
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Male
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Placebos
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Puberty*
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Rats
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Sex Factors
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Testosterone / administration & dosage*