1. The contemplation ladder: validation of a measure of readiness to consider smoking cessation;Beiner;Health Psychol.,1991
2. Readiness for Drug Treatment and Treatment Entry under Conditions of ‘Treatment on Demand’: Preliminary Results;Bluthenthal,1999
3. Facilitating treatment entry among out-of-treatment injection drug users;Booth;Public Health Rep.,1998
4. Drug abuse treatment success among needle exchange participants;Brooner;Public Health Rep.,1998
5. Heavy drinking in a population of methadone-maintained clients;Chatham;J. Stud. Alcohol,1995