[Studies of intrinsic factors in the potassium-induced contraction of the guinea pig vas deferens].
D000818:Animals; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects*; D011188:Potassium / Q000494:pharmacology*; D014649:Vas Deferens / Q000502:physiology*
D011188:Potassium