This article, published in Psychiatric Clinics of North America, presents the advantages of a fully integrated assessment and treatment system for behavioral and general health care.  The authors then detail some of the many process changes they foresee precipitating such integration. 

Kathol, R. G., Melek, S., Bair, B., & Sargent, S. (2008).  Financing mental health and substance use disorder care within physical health: a look to the future. Psychiatric Clinics of North America, 31(1): 11-25. DOI:10.1016/j.psc.2007.11.001   

Authors: Roger G. Kathol, Steve Melek, Byron Bair, Susan Sargent