title: Hardening the methods, a comment on Fagerstrom & Furberg 2008.
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Etter
mesh_terms: D040343:Behavioral Risk Factor Surveillance System; D003431:Cross-Cultural Comparison; D006801:Humans; D015995:Prevalence; D012907:Smoking / Q000453:epidemiology; D016540:Smoking Cessation