title: The interaction of hydrogen ions and calcium ions on the ATPase activity of cardiac myofibrils.
mesh_terms: D000251:Adenosine Triphosphatases / Q000378:metabolism; D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D004285:Dogs; D006321:Heart / Q000187:drug effects*; D006859:Hydrogen / Q000494:pharmacology*; D006863:Hydrogen-Ion Concentration; D009210:Myofibrils / Q000187:drug effects* / Q000378:metabolism; D011522:Protons
chemical_list: D011522:Protons; D006859:Hydrogen; D000251:Adenosine Triphosphatases; D002118:Calcium