title: National and international nicotine dependence.
authors.forename: N
authors.initials: N
authors.lastname: Gray
mesh_terms: D005260:Female; D014943:Global Health; D006801:Humans; D008297:Male; D015995:Prevalence; D018570:Risk Assessment; D016540:Smoking Cessation / Q000379:methods*; D014029:Tobacco Use Disorder / Q000453:epidemiology* / Q000517:prevention & control