title: Health of the nation.
mesh_terms: D000437:Alcoholism / Q000517:prevention & control*; D015658:HIV Infections / Q000517:prevention & control*; D006801:Humans; D015819:Substance Abuse, Intravenous / Q000517:prevention & control*; D019966:Substance-Related Disorders / Q000517:prevention & control*; D006113:United Kingdom