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Stulz, Niklaus; Lutz, Wolfgang; Kopta, Stephen Mark; Minami, Takuya; Saunders, Stephen M. (2013). Dose–effect relationship in routine outpatient psychotherapy: Does treatment duration matter? Journal of counseling psychology, 60(4), pp. 593-600. American Psychological Association 10.1037/a0033589
Wampold, Bruce E.; Budge, Stephanie L.; Laska, Kevin M.; Del Re, A.C.; Baardseth, Timothy P.; Flückiger, Christoph; Minami, Takuya; Kivlighan II, D. Martin; Gunn, Wade (2011). Evidence-based treatments for depression and anxiety versus treatment-as-usual: a meta-analysis of direct comparisons. Clinical psychology review, 31(8), pp. 1304-1312. New York, N.Y.: Elsevier Science 10.1016/j.cpr.2011.07.012
