title: Letter: Drug use as determined by interviews.
mesh_terms: D000328:Adult; D006801:Humans; D006993:Hypnotics and Sedatives; D019966:Substance-Related Disorders / Q000453:epidemiology; D014149:Tranquilizing Agents; D014481:United States
chemical_list: D006993:Hypnotics and Sedatives; D014149:Tranquilizing Agents