Cephalalgia · 2012 · 22 citations · 6 references
The results provide Class IV evidence that oral B. serrata reduces the intensity and frequency of headaches in patients with CCH.
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Peter J. Goadsby · Cephalalgia · 2004 · 2.4K citations · Full text
Professor Peer Tfelt-hansen, Pain Disorders, Journal 2004 +22
Towards a Definition of Intractable Headache for Use in Clinical Practice and Trials
Jean Schoenen, Michel D. Ferrari, SD Silberstein et al. · Cephalalgia · 2006 · 194 citations
K. Sengupta, Alluri V. Krishnaraju, Amar A. Vishal et al. · International Journal of Medical Sciences · 2010 · 129 citations · Full text