Public mental health clients with severe mental illness and probable posttraumatic stress disorder: Trauma exposure and correlates of symptom severity. 
Lu, W., Yanos, P.T., Silverstein, S.M., Mueser, K.T., Rosenberg, S. D., Gottlieb, J.D., Duva, S.M., Kularatne, T., Dove-Williams, S., Paterno, D., Hawthorne-Seraie, D., & Giacobbe, G. (2013).
Journal of Traumatic Stress, 26(2), 266-273.