Papers of the Week

The journal was founded in 1980 and was first published in 1981. The foundation was mainly laid by Ottar Sjaastad who also served as the first Editor-in-Chief. In the early years, was published in Scandinavia and was owned by the Norwegian Migraine Society. It became the official journal of the International Headache Society in 1984 and in 1993 ownership of was transferred to International Headache Society. The publisher changed in 2000 and then again in 2009. The success of can be seen by the almost continuous rising of its impact factor and by the increasing number of issues including supplements and special issues. In the future, will become more digital and open access.