title: A calcium requirement for release of 3H-guanethidine by sympathetic nerve stimulation.
mesh_terms: D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D002415:Cats; D003106:Colon / Q000378:metabolism; D004558:Electric Stimulation; D006145:Guanethidine / Q000378:metabolism*; D066298:In Vitro Techniques; D010477:Perfusion; D013564:Sympathetic Nervous System / Q000502:physiology*; D014316:Tritium
chemical_list: D014316:Tritium; D002118:Calcium; D006145:Guanethidine