[Electrocardiographic changes during and after upper gastrointestinal tract endoscopy].
D000328:Adult; D000368:Aged; D004562:Electrocardiography; D004724:Endoscopy; D005260:Female; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D006321:Heart / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged