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Open Access Letter to the Editor

Hemicrania continua- Major Shortcomings in the new classification or rigid thinking is death to progress

Peter J Goadsby

Author Affiliations

NIHR-Wellcome Trust Clinical Research Facility, King’s College London, London, UK

The Journal of Headache and Pain 2014, 15:53  doi:10.1186/1129-2377-15-53

Published: 28 August 2014

First paragraph (this article has no abstract)

Asked to write upon the matters arising [1] from comments [2] on an earlier contribution [3] is an unusual position that has allowed debate around the beta version of the third edition of the International Classification of Headache Disorders, specifically its definition of hemicrania continua [4]. The issue at hand is the extent to which further experience and clinical science should allow the first description of a syndrome to evolve over time. I am sorry if my nuanced title left one’s correspondents of a mind that I was expressing more than a general principle.