The significance of hyperventilative and orthostatic T-wave changes on the electrocardiogram.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001794:Blood Pressure / Q000502:physiology*; D003327:Coronary Disease / Q000175:diagnosis*; D004562:Electrocardiography; D005080:Exercise Test; D006801:Humans; D006985:Hyperventilation; D008875:Middle Aged; D011187:Posture