title: Statistics Commentary Series: Commentary No. 18: Meta-Analysis, Part 1 - What It Is.
authors.affiliation: From the Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton; and Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.
authors.forename: David L
authors.initials: DL
authors.lastname: Streiner
mesh_terms: D016206:Databases, Bibliographic; D015201:Meta-Analysis as Topic; D013223:Statistics as Topic