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Aggression
Animals
2
Article
Brain
2
Cichlasoma dimerus
2
Cichlids
2
Diet
2
Female
2
Gonadal Steroid Hormones
2
Hierarchy, Social
2
Hydrocortisone
2
Immunoenzyme Techniques
2
L-Tryptophan
2
Male
2
Serotonin
2
Sexual Behavior
2
Steroid hormones
2
Stress
2
Tryptophan
2
adult
aggression
2
animal
2
animal cell
2
animal experiment
2
animal tissue
2
blood
2
brain
brain nerve cell
2
cichlid
controlled study
2
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1
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2JOUR