title: Meta-analyses involving cross-over trials: methodological issues.
authors.forename: Margaret R
authors.initials: MR
authors.lastname: Stedman
authors.forename: François
authors.initials: F
authors.lastname: Curtin
authors.forename: Diana R
authors.initials: DR
authors.lastname: Elbourne
authors.forename: Aaron S
authors.initials: AS
authors.lastname: Kesselheim
authors.forename: M Alan
authors.initials: MA
authors.lastname: Brookhart
mesh_terms: D018592:Cross-Over Studies; D006801:Humans; D015201:Meta-Analysis as Topic