title: [The guanethidine pupillary test in idiopathic headache].
mesh_terms: D000328:Adult; D005260:Female; D006145:Guanethidine / Q000494:pharmacology; D006261:Headache / Q000175:diagnosis* / Q000209:etiology / Q000378:metabolism; D006801:Humans; D008297:Male; D009638:Norepinephrine / Q000378:metabolism; D011680:Pupil / Q000187:drug effects*
chemical_list: D009638:Norepinephrine; D006145:Guanethidine
vernacular_title: Test pupillare alla quanetidina nelle cefalee idiopatiche.