The relationship of the first heart sound to mitral valve closure in dogs.
D000818:Animals; D016275:Atrial Function; D002302:Cardiac Output; D004285:Dogs; D004562:Electrocardiography / Q000379:methods; D006326:Heart Auscultation; D006339:Heart Rate; D006347:Heart Sounds; D006439:Hemodynamics; D008943:Mitral Valve / Q000502:physiology*; D008955:Models, Cardiovascular; D013599:Systole; D016276:Ventricular Function