“…Considerable work has examined its diffusion in SUD treatment programs and OTPs (Brigham et al, 2007;Ducharme & Abraham, 2008;Ducharme et al, 2007;Friedmann et al, 2010;Gordon et al, 2007;Knudsen et al, 2006Knudsen et al, , 2009Koch et al, 2006;Kovas et al, 2007;Wallack et al, 2010). Several surveys of physicians have examined the nexus between attitudes and prescribing (Arfken et al, 2010;Kissin et al, 2006;Netherland et al, 2009;Reif et al, 2007;Thomas et al, 2008;WESTAT, 2006).…”