RT Book T1 Relationship of time in methadone maintenance treatment to drug use history and social participation A1 Stauder, John W. LA Undetermined PP Ann Arbor, Mich. PB Univ. Microfilms Internat. YR 1983 UL https://krimdok.uni-tuebingen.de/Record/1083825054 K1 Hochschulschrift