title: Trends of HTLV-I and HIV infections in drug addicts.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology*; D006800:Deltaretrovirus Infections / Q000453:epidemiology*; D007558:Italy; D019966:Substance-Related Disorders / Q000453:epidemiology*; D013997:Time Factors