TY - JOUR T1 - Duration of nonmethadone outpatient treatment: Results from a national survey AU - Friedmann, Peter D. AU - Alexander, Jeffrey A. AU - Yey, Yining AU - Nahra, Tammie AU - Soliman, Soheil AU - Pollack, Harold A. PY - 2006 DO - 10.1300/J465v27n03_07 SP - 47 EP - 53 JO - Substance Abuse VL - 27 IS - 3 SN - 0889-7077 ER -