Poirier, M. F., Laqueille, X., Jalfre, V., Willard, D., Bourdel, M. C., Fermanian, J., & Olie, J. P. (2004). Clinical profile of responders to buprenorphine as a substitution treatment in heroin addicts: results of a multicenter study of 73 patients. Progress in Neuro-Psychopharmacology & Biological Psychiatry, 28(2), 267–272. http://www.elsevier.com/inca/publications/store/5/2/5/4/8/8/