title: Pathophysiologic significance of "stress" or relative polycythemia in essential hypertension.
mesh_terms: D000328:Adult; D001809:Blood Viscosity; D004912:Erythrocytes; D004921:Erythropoietin; D006400:Hematocrit; D006801:Humans; D006973:Hypertension / Q000188:drug therapy / Q000503:physiopathology*; D008297:Male; D008750:Methyldopa / Q000627:therapeutic use; D008875:Middle Aged; D010953:Plasma Volume; D011086:Polycythemia / Q000503:physiopathology*; D011446:Prospective Studies; D012083:Renin / Q000097:blood
chemical_list: D004921:Erythropoietin; D008750:Methyldopa; D012083:Renin