title: New computations said to give better estimate of drug addicts.
mesh_terms: D015658:HIV Infections / Q000517:prevention & control; D006801:Humans; D007087:Illinois / Q000453:epidemiology; D011159:Population Surveillance / Q000379:methods*; D012650:Self Disclosure; D019966:Substance-Related Disorders / Q000453:epidemiology*