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Female
Male
female
male
4
Animals
3
Rats
3
article
3
nonhuman
3
rat
3
sex difference
3
Ontogeny
2
Pituitary Gland, Anterior
2
Sex Characteristics
2
animal experiment
2
controlled study
2
estrogen
2
gonadorelin
2
gonadotropin
2
newborn
2
ontogeny
2
opiate
2
priority journal
2
puberty
2
serotonin
2
signal transduction
2
testosterone
2
Age Factors
1
Aging
1
Animal
1
Animalia
1
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1
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2
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3
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4JOUR