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Guidelines for trials of behavioral treatments for recurrent headache, first edition: American Headache Society Behavioral Clinical Trials Workgroup.
Penzien DB, Andrasik F, Freidenberg BM, Houle TT, Lake AE 3rd, Lipchik GL, Holroyd KA, Lipton RB, McCrory DC, Nash JM, Nicholson RA, Powers SW, Rains JC, Wittrock DA; American Headache Society Behavioral Clinical Trials Workgroup. Penzien DB, et al. Among authors: lipchik gl. Headache. 2005 May;45 Suppl 2:S110-32. doi: 10.1111/j.1526-4610.2005.4502004.x. Headache. 2005. PMID: 15921503
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