title: Brief report: multilevel analysis of school smoking policy and pupil smoking behaviour in Wales.
authors.affiliation: Research Centre for Health Promotion, University of Bergen, Christiesgt. 13, 5020 Bergen, Norway. nora.wiium@psyhp.uib.no
authors.forename: Nora
authors.initials: N
authors.lastname: Wiium
authors.forename: Stephen
authors.initials: S
authors.lastname: Burgess
authors.forename: Laurence
authors.initials: L
authors.lastname: Moore
mesh_terms: D000293:Adolescent; D003430:Cross-Sectional Studies; D006801:Humans; D015999:Multivariate Analysis; D016134:Organizational Policy; D012574:Schools; D012907:Smoking / Q000453:epidemiology*; D000074606:Smoking Prevention; D014852:Wales / Q000453:epidemiology