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Mean ± SEM rates for affiliative behavior (A) directed towards others and (B) received from others during the placebo (open bar), estradiol (hatched bar), corticotropin releasing-hormone receptor analogue (CRHA; grey bar), and combined estradiol and CRHA (closed bar) treatments in dominant females and subordinate females with either an l/l or s-variant 5HTT genotype. Asterisks indicate the significant elevation in behavior induced by estradiol replacement.
