title: [A study on cerebral hemodynamics of orthostatic hypotension].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001794:Blood Pressure / Q000187:drug effects; D002560:Cerebrovascular Circulation / Q000187:drug effects; D048909:Diabetes Complications; D004878:Ergotamine / Q000494:pharmacology; D006584:Hexamethonium Compounds / Q000494:pharmacology; D006801:Humans; D006973:Hypertension / Q000150:complications; D007024:Hypotension, Orthostatic / Q000150:complications / Q000503:physiopathology*; D008875:Middle Aged; D013565:Sympatholytics / Q000494:pharmacology
chemical_list: D006584:Hexamethonium Compounds; D013565:Sympatholytics; D004878:Ergotamine