Cocaine dependence with and without post-traumatic stress disorder: a comparison of substance use, trauma history and psychiatric comorbidity. - Back, Sudie; Dansky, Bonnie S.; Coffey, Scott F.; Saladin, Michael E.; Sonne, Susan; Brady, Kathleen T.; Back, S; Dansky, B S; Coffey, S F; Saladin, M E; Sonne, S; Brady, K T (American Journal on Addictions, 2000)