title: Rectal potential difference in essential hypertension.
mesh_terms: D000200:Action Potentials; D000450:Aldosterone / Q000097:blood; D006801:Humans; D006929:Hyperaldosteronism / Q000503:physiopathology; D006973:Hypertension / Q000503:physiopathology*; D012007:Rectum / Q000503:physiopathology*; D012083:Renin / Q000097:blood
chemical_list: D000450:Aldosterone; D012083:Renin