title: Comparative responses to orthostatic stress in normal and abnormal subjects. Evaluation by impedance cardiography.
mesh_terms: D002302:Cardiac Output; D002306:Cardiac Volume; D002318:Cardiovascular Diseases / Q000503:physiopathology*; D006321:Heart / Q000502:physiology / Q000503:physiopathology; D006339:Heart Rate; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D010992:Plethysmography, Impedance; D011187:Posture