Effect of epicardiectomy on myocardial function.
D000818:Animals; D006328:Cardiac Catheterization; D004285:Dogs; D006321:Heart / Q000187:drug effects / Q000502:physiology*; D006334:Heart Function Tests; D009638:Norepinephrine / Q000494:pharmacology; D010496:Pericardium / Q000601:surgery*
D009638:Norepinephrine