title: Sympathetic responsiveness to head-up tilt in essential hypertension.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001007:Anxiety; D001794:Blood Pressure; D001810:Blood Volume; D003404:Creatinine / Q000378:metabolism; D004837:Epinephrine / Q000652:urine; D005260:Female; D006400:Hematocrit; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D009497:Neurotic Disorders; D009638:Norepinephrine / Q000652:urine; D010555:Personality Inventory; D011187:Posture; D012018:Reflex; D013564:Sympathetic Nervous System / Q000503:physiopathology
chemical_list: D003404:Creatinine; D009638:Norepinephrine; D004837:Epinephrine