title: Dealing with publication bias: two possible steps forward.
authors.forename: Robin
authors.initials: R
authors.lastname: Room
mesh_terms: D006266:Health Education / Q000379:methods; D006801:Humans; D015201:Meta-Analysis as Topic; D017594:Publication Bias; D012574:Schools / Q000458:organization & administration; D019966:Substance-Related Disorders / Q000517:prevention & control