Estimating addiction rates and locating target populations. How decomposition into stages helps.
D000704:Analysis of Variance; D004812:Epidemiologic Methods; D006556:Heroin Dependence / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008887:Military Medicine; D012107:Research Design; D012959:Socioeconomic Factors; D013997:Time Factors; D014481:United States; D014728:Veterans; D014744:Vietnam