title: Retinal bloodvessel diameter during migraine.
mesh_terms: D000293:Adolescent; D000328:Adult; D004878:Ergotamine / Q000494:pharmacology; D005132:Eye Manifestations; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000150:complications / Q000209:etiology / Q000235:genetics / Q000503:physiopathology*; D009325:Nausea / Q000209:etiology; D010781:Photography; D012171:Retinal Vessels / Q000187:drug effects / Q000503:physiopathology; D014653:Vascular Headaches / Q000503:physiopathology; D014786:Vision Disorders
chemical_list: D004878:Ergotamine