Another important theme of this issue of the journal is alcohol and drug abuse. Li-Tzy Wu, Sc.D., and Chris L. Ringwalt, Dr.P.H., present the results of a study of the use of and perceived need for alcohol treatment services among adolescents who had received mental health services compared with same-aged adolescents who did not receive such services. The study data were drawn from the 2000 and 2001 National Household Surveys on Drug Abuse (see page 84). Susan E. Stockdale, Ph.D., and her coauthors discuss their study of the level of transient and persistent need for alcohol, drug, and mental health services and unmet need over time among respondents to the Health Care for Communities (HCC) household telephone survey (page 93). In addition, in the Innovations: Alcohol & Drug Abuse column, Robert F. Forman, Ph.D., examines the availability of controlled substances on the Internet and the challenges this poses for individuals who are trying to overcome addiction (page 31). Two additional articles on the drug and alcohol abuse theme also examine the important issue of trauma. Lisa R. Cohen, Ph.D., and Denise A. Hien, Ph.D., assessed the effect of cognitive-behavioral therapy on a range of problems associated with complex trauma in a sample of women with comorbid substance use disorders and posttraumatic stress disorder (page 100). Finally, Quyen Q. Tiet, Ph.D., and colleagues present their study of rates of sexual and physical abuse and suicide attempts among male and female patients of the Department of Veterans Affairs system who sought treatment for substance abuse or other psychiatric disorders. The study also addressed associations between sexual and physical abuse and recent suicide attempts among men (page 107).