Tietjen, G E Migrainous visual phenomena in the general population. [electronic resource] - Cephalalgia : an international journal of headache Jun 1999 - 477 p. digital Publication Type: Comment; Editorial ISSN: 0333-1024 Standard No.: 10.1177/033310249901900501 doi Subjects--Topical Terms: AnimalsCortical Spreading Depression--physiologyHumansMigraine Disorders--diagnosisOccipital Lobe--physiopathologyVision Disorders--diagnosis