Cohen, E D (1999) An exploratory attempt to distinguish subgroups among crack-abusing African-American women. J Addict Dis 18:41-54 |
Cohen, E; Navaline, H; Metzger, D (1994) High-risk behaviors for HIV: a comparison between crack-abusing and opioid-abusing African-American women. J Psychoactive Drugs 26:233-41 |