title: Numbers needed to treat derived from meta-analysis: a word of caution.
authors.affiliation: Basel Institute for Clinical Epidemiology, Basel, Switzerland.
authors.forename: Arthur
authors.initials: A
authors.lastname: Marx
authors.forename: Heiner C
authors.initials: HC
authors.lastname: Bucher
mesh_terms: D006801:Humans; D015201:Meta-Analysis as Topic; D012306:Risk