Relationship of calcium exchange to changes in length, tension, and work in heart muscle.
D000818:Animals; D001692:Biological Transport; D002118:Calcium / Q000378:metabolism*; D002127:Calcium Isotopes; D004285:Dogs; D005260:Female; D006321:Heart / Q000502:physiology*; D066298:In Vitro Techniques; D008297:Male; D010210:Papillary Muscles; D011817:Rabbits; D011874:Radiometry
D002127:Calcium Isotopes; D002118:Calcium