Assertion: adenosine's receptor | /r/HasProperty | reduced by sch
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text: 5-HT1A receptors occur constitutively, and are further increased by agonists such as CGS 21680 and 8-OH-DPAT, or reduced by antagonists including SCH 58216 and methysergide, which could also contribute to psychostimulant addiction (Łukasiewicz, 2007).