Further Studies of Drug Users, Treatment Typologies, and Assessment of Outcomes During Treatment in DARP. The Effectiveness of Drug Abuse Treatment, Vol. III; Evaluation of Treatment Outcomes for 1971-1972 DARP Admission Cohort. The Effectiveness of Drug Abuse Treatment, Vol. IV

Studies of the Effectiveness of Treatments for Drug Abuse, Vol. V: Evaluation of Treatment Outcomes for 1972-1973 DARP Admission Cohort. American Journal of Psychiatry 135(7): 885-A-886, 1978

A national follow-up study to evaluate the effectiveness of drug abuse treatment: a report on cohort 1 of the DARP five years later. American Journal of Drug and Alcohol Abuse 3(4): 545-556, 1976

The case for drug abuse treatment effectiveness, based on the DARP research program. British Journal of Addiction 75(2): 117-131, 1980

Drug abuse treatment readmissions and outcomes. Three-year follow-up of DARP patients. Archives of General Psychiatry 37(8): 896-901, 1980

On the effectiveness of treatment for drug abuse: evidence from the DARP research programme in the United States. Bulletin on Narcotics 31(1): 1-11, 1979

Description of drug users in treatment: 1971-1972 DARP admissions. American Journal of Drug and Alcohol Abuse 2(1): 15-28, 1975

Retention in treatment of drug users: 1971-1972 DARP admissions. American Journal of Drug and Alcohol Abuse 2(1): 63-71, 1975

Role of alcohol use by narcotic addicts as revealed in the DARP research on evaluation of treatment for drug abuse. Alcoholism Clinical and Experimental Research 11(5): 437-439, 1987

The impact of drug treatments on during-treatment criteria: 1971-1972 DARP admissions. American Journal of Drug and Alcohol Abuse 2(1): 73-98, 1975

National treatment system evaluation based on the Drug Abuse Reporting Program (DARP) followup research. Nida Research Monograph 51: 29-41, 1984

Illicit drug use and return to treatment: follow-up study of treatment admissions to DARP during 1969-1971. American Journal of Drug and Alcohol Abuse 5(1): 23-38, 1978

Retention in treatment of drug users 1971 1972 drug abuse reporting program admissions. American Journal Of Drug and Alcohol Abuse: 63-71, 1975

Description of drug users in treatment 1971 1972 drug abuse reporting program admissions. American Journal Of Drug and Alcohol Abuse: 15-28, 1975

Substance abuse treatment entry, retention and effectiveness: Out-of-treatment opiate injection drug users. Drug and Alcohol Dependence 42(1): 11-20, 1996

Resistance to Drug Abuse Treatment: A Comparison of Drug Users Who Accept or Decline Treatment Referral Assessment. Journal of Drug Issues 30(3): 555-574, 2000