title: Lack of cross-tolerance on multiple opiate receptors in the mouse vas deferens.
mesh_terms: D000818:Animals; D004361:Drug Tolerance; D004558:Electric Stimulation; D066298:In Vitro Techniques; D008297:Male; D051379:Mice; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects*; D009270:Naloxone / Q000494:pharmacology; D011957:Receptors, Opioid / Q000187:drug effects*; D014649:Vas Deferens / Q000187:drug effects
chemical_list: D011957:Receptors, Opioid; D009270:Naloxone