Cardiovascular response to the upright position during pregnancy.
D000293:Adolescent; D000328:Adult; D000886:Anthropometry; D001775:Blood Circulation / Q000502:physiology*; D001776:Blood Circulation Time; D001783:Blood Flow Velocity; D001794:Blood Pressure / Q000502:physiology; D001810:Blood Volume; D002302:Cardiac Output; D002320:Cardiovascular Physiological Phenomena; D005260:Female; D006321:Heart / Q000502:physiology; D006339:Heart Rate; D006400:Hematocrit; D006801:Humans; D011187:Posture; D011247:Pregnancy / Q000502:physiology*; D014655:Vascular Resistance