title: The intracellular sodium ion concentration of sheep heart Purkinje fibres and its relationship to external sodium [proceedings].
mesh_terms: D000818:Animals; D001693:Biological Transport, Active; D006329:Heart Conduction System / Q000378:metabolism*; D066298:In Vitro Techniques; D011690:Purkinje Fibers / Q000378:metabolism*; D012756:Sheep; D012964:Sodium / Q000378:metabolism*
chemical_list: D012964:Sodium