A Hajian-Heydari

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1. The possible involvement of subtypes of dopamine-receptors in apomorphine induced pecking was studied in pigeons. Different doses of apomorphine induced pecking in pigeons which was dose-dependent. 2. The response was decreased by SCH 23390 (D-1 antagonist) or high doses of sulpiride (D-2 antagonist) pretreatment, but increased by lower doses of(More)
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