Maughan, D W Isometric force development, isotonic shortening, and elasticity measurements from Ca2+-activated ventricular muscle of the guinea pig. [electronic resource] - The Journal of general physiology Apr 1978 - 431-51 p. digital Publication Type: Journal Article ISSN: 0022-1295 Standard No.: 10.1085/jgp.71.4.431 doi Subjects--Topical Terms: Adenosine Triphosphatases--metabolismAnimalsCalcium--metabolismGuinea PigsHeart--physiologyHeart VentriclesIn Vitro TechniquesMagnesium--pharmacologyMuscle TonusMyocardial Contraction--drug effectsMyocardium--enzymologyPhosphocreatine--metabolism