title: Guidelines for trials of behavioral treatments for recurrent headache: purpose, process, and product.
authors.affiliation: Department of Psychiatry and Human Behavior, University of Mississipi Medical Center, Jackson, Mississipi 39216, USA.
authors.forename: Donald B
authors.initials: DB
authors.lastname: Penzien
mesh_terms: D001521:Behavior Therapy; D002986:Clinical Trials as Topic; D020773:Headache Disorders / Q000628:therapy*; D006801:Humans; D017410:Practice Guidelines as Topic