Positional effects of gastric distention upon the mean electrical axis of the QRS complex of the electrocardiogram.
D000334:Aerophagy; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006331:Heart Diseases / Q000175:diagnosis; D006801:Humans; D011187:Posture; D013270:Stomach / Q000502:physiology*