title: Investigating hypertension.
mesh_terms: D006801:Humans; D006973:Hypertension / Q000175:diagnosis*; D006978:Hypertension, Renovascular / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery; D011877:Radionuclide Imaging; D012078:Renal Artery Obstruction / Q000000981:diagnostic imaging