Atrial contribution to ventricular function in the sitting position.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001794:Blood Pressure; D002302:Cardiac Output; D005260:Female; D006321:Heart / Q000502:physiology*; D006325:Heart Atria; D006331:Heart Diseases / Q000175:diagnosis; D006334:Heart Function Tests; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D008875:Middle Aged; D010424:Pentobarbital / Q000627:therapeutic use; D011187:Posture; D011292:Premedication; D011652:Pulmonary Circulation
D010424:Pentobarbital