title: Effect of epinephrine on the duration of action potential of papillary muscles.
mesh_terms: D000200:Action Potentials / Q000187:drug effects*; D000818:Animals; D002118:Calcium / Q000378:metabolism; D002415:Cats; D004285:Dogs; D004837:Epinephrine / Q000494:pharmacology*; D006168:Guinea Pigs; D006352:Heart Ventricles / Q000187:drug effects; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects; D009132:Muscles / Q000378:metabolism / Q000502:physiology; D010210:Papillary Muscles / Q000187:drug effects*; D013268:Stimulation, Chemical
chemical_list: D002118:Calcium; D004837:Epinephrine