Hemicrania continua- Major Shortcomings in the new classification or rigid thinking is death to progress
NIHR-Wellcome Trust Clinical Research Facility, King’s College London, London, UK
The Journal of Headache and Pain 2014, 15:53 doi:10.1186/1129-2377-15-53Published: 28 August 2014
First paragraph (this article has no abstract)
Asked to write upon the matters arising  from comments  on an earlier contribution  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 . 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.