title: Meta-analysis is no substitute for theory.
authors.affiliation: School of Life Sciences, Glasgow Caledonian University, Cowcaddens Road, Glasgow, Scotland G4 OBA, UK. richard.hammersley@gcal.ac.uk
authors.forename: Richard
authors.initials: R
authors.lastname: Hammersley
mesh_terms: D015984:Causality; D006801:Humans; D008385:Marijuana Smoking / Q000453:epidemiology*; D015201:Meta-Analysis as Topic