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Ducros, A.; Arnold, Marcel; Dichgans, M.; Houdart, E.; Ferro, J.; Leroux, J.; Li, Y. S.; Singhal, A.; Tietjen, J. (2013). The International Classification of Headache Disorders, 3rd edition (beta version). Cephalalgia, 33(9), pp. 629-808. Sage Publications 10.1177/0333102413485658
