title: On the variability of the direction of the cardiac vector and of the T-, Q- and S-waves in the normal ECG of the conscious beagle dog.
mesh_terms: D000818:Animals; D004285:Dogs / Q000502:physiology*; D004562:Electrocardiography / Q000662:veterinary*; D005260:Female; D006321:Heart / Q000502:physiology*; D008297:Male