Regional differences in contractions of mammalian hearts.
D000818:Animals; D016275:Atrial Function; D002415:Cats; D004285:Dogs; D005071:Evoked Potentials; D006168:Guinea Pigs; D009200:Myocardial Contraction; D011817:Rabbits; D051381:Rats; D013696:Temperature; D013997:Time Factors; D016276:Ventricular Function