1. Fletcher BW, Battjes RJ: Introduction to the special issue: Treatment process in DATOS. Drug Alcohol Depend 57;81–87, 1999.
2. D’Aunno T, Vaughn T An organizational analysis of service patterns in outpatient drug abuse treatment units. J of Subst Abuse 7:27–42, 1995.
3. Timko C: Policies and services in residential substance abuse programs: Comparisons with psychiatric programs. J of Subst Abuse 7, p. 43, 1995.
4. Lehman A, Myers C: Assessment and classification of patients with psychiatric and substance abuse syndromes. Hosp and Commun Psychiatry 40:1019, 1989.
5. Hubbard RL, Marsden ME, Rachal JV, Harwood HJ, Cavanaugh ER, Ginzburg HM: Drug Abuse Treatment: A National Study of Effectiveness. Chapel Hill, The University of North Carolina Press, 1989.