title: Response to letter by van der Jagt et al (published in the January 2008 issue).
authors.forename: Marieke J H
authors.initials: MJ
authors.lastname: Wermer
authors.forename: Irene C
authors.initials: IC
authors.lastname: van der Schaaf
authors.forename: Ale
authors.initials: A
authors.lastname: Algra
authors.forename: Gabriel J E
authors.initials: GJ
authors.lastname: Rinkel
mesh_terms: D017542:Aneurysm, Ruptured / Q000209:etiology*; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications*; D015201:Meta-Analysis as Topic; D017594:Publication Bias; D012106:Research; D012307:Risk Factors