| Niklaus Stulz Differential effects of treatments for chronic depression: a latent growth model reanalysisNiklaus Stulz Department of Psychiatry, University of Pennsylvania Philadelphia, PA 19104, USA J Consult Clin Psychol 78:409-19. 2010 Distinguishing anxiety and depression in self-report: purification of the Beck Anxiety Inventory and Beck Depression Inventory-IINiklaus Stulz Niklaus Stulz, Center for Psychotherapy Research, Department of Psychiatry, University of Pennsylvania, 3535 Market Street, Suite 643, Philadelphia, PA 19104, USA J Clin Psychol 66:927-40. 2010 Psychosocial treatments for cocaine dependence: the role of depressive symptomsNiklaus Stulz Center for Psychotherapy Research, Department of Psychiatry, University of Pennsylvania, 3535 Market Street, Philadelphia, PA 19104, USA Drug Alcohol Depend 114:41-8. 2011
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