title: Feedback inhibition of responses of rat vas deferens to twin pulse stimulation.
mesh_terms: D000317:Adrenergic alpha-Antagonists / Q000494:pharmacology; D000818:Animals; D005246:Feedback; D066298:In Vitro Techniques; D008297:Male; D009638:Norepinephrine / Q000378:metabolism; D051381:Rats; D014649:Vas Deferens / Q000187:drug effects / Q000502:physiology*
chemical_list: D000317:Adrenergic alpha-Antagonists; D009638:Norepinephrine