1. Agras, S., Kazdin, A., & Wilson, G. T. (1979). Behavior therapy. New York, NY: W.H. Freeman.
2. Clark, N. M., Lachance, L., Benedict, M. B., Little, R., Leo, H., Awad, D., & Wilkin, M. K. (2015). The extent and patterns of multiple chronic conditions in low-income children. Clinical Pediatrics, 54, 515–524.
3. Duckworth, M. P., & Iezzi, T. (2010). Physical injuries, pain, and psychological trauma: Pathways to disability. Psychological Injury and Law, 3, 241–253.
4. Duckworth, M. P., Iezzi, T., & Carlson, G. C. (2018). Stepped care for chronic pain in integrated care settings. In A. Maragakis & T. W. O’Donohue (Eds.), Principle-based stepped care and brief psychotherapy for integrated care settings. New York, NY: Springer.
5. Duckworth, M. P., Iezzi, T., & Sewell, T. (2009). Assessing and managing chronic pain in the primary care setting. In L. James & W. T. O’Donohue (Eds.), The primary care consultant toolkit: Tools for behavioral medicine (pp. 183–197). New York, NY: Springer Press.