title: Glycogen phosphorylase levels in spontaneously beating turtle hearts.
mesh_terms: D000818:Animals; D004789:Enzyme Activation; D005260:Female; D005964:Glucosyltransferases / Q000378:metabolism*; D006168:Guinea Pigs; D006321:Heart / Q000502:physiology; D009119:Muscle Contraction; D009206:Myocardium / Q000201:enzymology*; D006005:Phosphorylases / Q000378:metabolism; D051381:Rats; D013997:Time Factors; D014426:Turtles
chemical_list: D005964:Glucosyltransferases; D006005:Phosphorylases