Relation between amplitude of first heart sound and duration of P-Q interval in dogs with atrioventricular block.
D000818:Animals; D054537:Atrioventricular Block; D002318:Cardiovascular Diseases; D004285:Dogs; D004562:Electrocardiography; D006327:Heart Block; D006337:Heart Murmurs; D006347:Heart Sounds
CARDIAC MURMURS AND SOUNDS; ELECTROCARDIOGRAPHY; HEART BLOCK/experimental