title: Retinal blood vessel diameter during migraine.
mesh_terms: D000293:Adolescent; D000328:Adult; D004878:Ergotamine; D005260:Female; D006801:Humans; D008297:Male; D008881:Migraine Disorders / Q000188:drug therapy / Q000503:physiopathology*; D012171:Retinal Vessels / Q000503:physiopathology*
chemical_list: D004878:Ergotamine