title: Selective receptors for beta-endorphin on the rat vas deferens.
mesh_terms: D000818:Animals; D004558:Electric Stimulation; D004723:Endorphins / Q000494:pharmacology; D066298:In Vitro Techniques; D008297:Male; D051379:Mice; D009270:Naloxone / Q000494:pharmacology; D010433:Pentylenetetrazole / Q000494:pharmacology; D051381:Rats; D011957:Receptors, Opioid / Q000187:drug effects; D013045:Species Specificity; D014649:Vas Deferens / Q000378:metabolism* / Q000502:physiology
chemical_list: D004723:Endorphins; D011957:Receptors, Opioid; D009270:Naloxone; D010433:Pentylenetetrazole