title: Changes in myocardial Na and K content during the development of cardiac glycoside inotropy.
mesh_terms: D000818:Animals; D004073:Digitoxigenin / Q000494:pharmacology*; D004558:Electric Stimulation; D006168:Guinea Pigs; D006325:Heart Atria / Q000378:metabolism; D008297:Male; D009200:Myocardial Contraction / Q000187:drug effects; D009206:Myocardium / Q000378:metabolism*; D010042:Ouabain / Q000494:pharmacology*; D011188:Potassium / Q000378:metabolism*; D012964:Sodium / Q000378:metabolism*
chemical_list: D004073:Digitoxigenin; D010042:Ouabain; D012964:Sodium; D011188:Potassium