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  • Alstadhaug, Karl Bjørnar; Ofte, Hilde Karen; Kristoffersen, Espen Saxhaug (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    The concept that headache treatment per se may be the cause of chronification of headache is not new,3 but our understanding of this concept, and the terminology defining it, have changed throughout the years. The criteria ...