title: Clinical observations on etiology of essential hypertension.
mesh_terms: D000328:Adult; D000368:Aged; D002531:Cerebellum / Q000098:blood supply; D002536:Cerebral Arteries; D003251:Constriction, Pathologic; D006801:Humans; D006973:Hypertension / Q000209:etiology* / Q000503:physiopathology / Q000601:surgery; D008526:Medulla Oblongata; D008875:Middle Aged; D014711:Vertebral Artery