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Friedmann PD, Hoskinson R, Gordon M, Schwartz R, Kinlock T, Knight K, Flynn PM, Welsh WN, Stein LA, Sacks S, O'Connell DJ, Knudsen HK, Shafer MS, Hall E, Frisman LK; Mat Working Group Of CJ-Dats.Friedmann PD, et al. Among authors: gordon m.Subst Abus. 2012;33(1):9-18. doi: 10.1080/08897077.2011.611460.Subst Abus. 2012.PMID: 22263709Free PMC article.