[Observations on the effect of exercise, propranolol and atropine on Q-T interval and QTa under esophageal atrial pacing].
Chang
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D000293:Adolescent; D000328:Adult; D001285:Atropine / Q000494:pharmacology*; D002304:Cardiac Pacing, Artificial; D004562:Electrocardiography / Q000187:drug effects; D004947:Esophagus; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011433:Propranolol / Q000494:pharmacology*
D001285:Atropine; D011433:Propranolol