Effect of frequency and Ca++ concentration on oxygen consumption of the isolated rat heart.
D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D066298:In Vitro Techniques; D008297:Male; D009200:Myocardial Contraction; D009206:Myocardium / Q000378:metabolism*; D010101:Oxygen Consumption / Q000187:drug effects; D010477:Perfusion; D051381:Rats; D011919:Rats, Inbred Strains
D002118:Calcium