Key points are not available for this paper at this time.
A. Thomas McLellan, George E. Woody, David Metzger, James McKay, Jack Durell, Arthur I. Alterman, Charles P. O'Brien, Evaluating the Effectiveness of Addiction Treatments: Reasonable Expectations, Appropriate Comparisons, The Milbank Quarterly, Vol. 74, No. 1 (1996), pp. 51-85
McLellan et al. (Mon,) studied this question.