Primary heroin users+drug-free treatment

Regression analyses of counts and rates: Poisson, overdispersed Poisson, and negative binomial models.

1995 • 1,621 citations

Assessing drinkers' motivation for change: The Stages of Change Readiness and Treatment Eagerness Scale (SOCRATES).

1996 • 822 citations

Methadone Maintenance vs 180-Day Psychosocially Enriched Detoxification for Treatment of Opioid Dependence

2000 • 415 citations

Effects of readiness for drug abuse treatment on client retention and assessment of process

1998 • 371 citations

Motivation and Readiness for Therapeutic Community Treatment among Cocaine and Other Drug Abusers

1997 • 133 citations

Reliability of a drug history questionnaire (DHQ)

1995 • 109 citations

Attrition prevention with individuals awaiting publicly funded drug treatment

2001 • 106 citations

A Risk-Benefit Analysis of Methadone Maintenance Treatment

2000 • 100 citations

Relationship between follow‐up rates and treatment outcomes in substance abuse research: more is better but when is "enough" enough?

2000 • 91 citations

Retention in treatment of heroin users in Italy: the role of treatment type and of methadone maintenance dosage

1998 • 83 citations

Comparative Treatment EffectivenessEffects of Program Modality and Client Drug Dependence History on Drug Use Reduction

1998 • 81 citations

Staff attitudes and retention of patients in methadone maintenance programs

1998 • 65 citations

Sources of motivation for abstinence

2001 • 45 citations

The Role of Significant Life Events in Discriminating Help-Seeking among Illicit Drug Users

1992 • 32 citations