Migraine with AuraØ At least two attacks fulfilling the below characteristicsØ Headache has at least three of the following four characteristics:1. 0ne or more fully reversible aura symptoms indicating focal cerebral cortical and/or brain stem dysfunction2. At least one aura symptom develops gradually over more than 4 minutes, or tow or more symptoms occur in succession3. No aura symptom lasts more than 60 minutes; if more than one aura symptom is present, accepted duration is proportionally increased4. Headache follows aura with a free interval of less than 60 minutes (it may also begin before or simultaneously with the aura) Migraine without AuraØ At least 5 attacks fulfilling the below characteristicsØ Headache attacks lasting 4-72 hours (untreated or unsuccessfully treated)Ø Headache has at least two of the following four characteristics:1. Unilateral location 2. Pulsating quality 3. Moderate or severe intensity which inhibits or prohibits daily activities 4. Aggravated by walking stairs or similar routine physical activityØ During headache at least one of the two following symptoms occur:1. Nausea and/or vomiting2. Photophobia and phonophobia