title: Comparison of the biochemical composition of four preparations of contracting cardiac muscle.
mesh_terms: D000255:Adenosine Triphosphate / Q000378:metabolism; D000818:Animals; D003401:Creatine / Q000378:metabolism; D000242:Cyclic AMP / Q000378:metabolism; D006168:Guinea Pigs; D006352:Heart Ventricles / Q000378:metabolism; D008297:Male; D008722:Methods; D009206:Myocardium / Q000378:metabolism*; D010210:Papillary Muscles / Q000378:metabolism; D010477:Perfusion; D006005:Phosphorylases / Q000378:metabolism; D011188:Potassium / Q000378:metabolism; D011506:Proteins / Q000378:metabolism
chemical_list: D011506:Proteins; D000255:Adenosine Triphosphate; D000242:Cyclic AMP; D006005:Phosphorylases; D003401:Creatine; D011188:Potassium