title: Type I error in headache research.
authors.forename: Timothy T
authors.initials: TT
authors.lastname: Houle
authors.forename: Dana P
authors.initials: DP
authors.lastname: Turner
authors.forename: Donald B
authors.initials: DB
authors.lastname: Penzien
mesh_terms: D035843:Biomedical Research / Q000379:methods / Q000592:standards*; D006261:Headache / Q000175:diagnosis / Q000628:therapy; D006801:Humans; D010506:Periodicals as Topic / Q000592:standards*; D012107:Research Design / Q000592:standards*