Since 1998, migraine with aura (MA) has been diagnosed according to the operational diagnostic criteria of the International Headache Society (ICHD-1). Here we present the data underlying the new criteria for MA in the ICHD-2 classification.
Danish Headache Center, University of Copenhagen, Department of Neurology, Glostrup Hospital, Nordre Ringvej 57, DK-2600 Glostrup, Denmark. kirchmann@dadlnet.dk