title: Behaviour of myosin projections during the staircase phenomenon of heart muscle.
mesh_terms: D000818:Animals; D004285:Dogs; D006339:Heart Rate; D066298:In Vitro Techniques; D046911:Macromolecular Substances; D009124:Muscle Proteins / Q000502:physiology; D009200:Myocardial Contraction; D009218:Myosins / Q000502:physiology*; D014961:X-Ray Diffraction
chemical_list: D046911:Macromolecular Substances; D009124:Muscle Proteins; D009218:Myosins