title: Sodium excretion and sympathetic activity in relation to severity of hypertensive disease.
mesh_terms: D001795:Blood Pressure Determination; D002940:Circadian Rhythm; D006801:Humans; D006973:Hypertension / Q000175:diagnosis* / Q000503:physiopathology; D009318:Natriuresis; D013564:Sympathetic Nervous System / Q000503:physiopathology; D013997:Time Factors