title: Diffusion of the intravenous technique among narcotic addicts in the United States.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D003932:Heroin / Q000008:administration & dosage; D049673:History, 20th Century; D006760:Hospitalization; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D009294:Narcotics / Q000008:administration & dosage*; D044469:Racial Groups; D019966:Substance-Related Disorders / Q000266:history; D013997:Time Factors; D014481:United States
chemical_list: D009294:Narcotics; D003932:Heroin