TY - JOUR AU - S. Krishnan-Sarin AU - M. I. Rosen AU - S. S. O'Malley A1 - BT - Archives of General Psychiatry C5 - Opioids & Substance Use; Measures JF - Archives of General Psychiatry PY - 1999 SP - 663 EP - 668 EP - T1 - Naloxone challenge in smokers: Preliminary evidence of an opioid component in nicotine dependence T2 - Archives of General Psychiatry T3 - Naloxone challenge in smokers: Preliminary evidence of an opioid component in nicotine dependence TI - Naloxone challenge in smokers: Preliminary evidence of an opioid component in nicotine dependence U1 - Opioids & Substance Use; Measures VL - 56 Y1 - 1999 ER -