Psychosomatic Medicine
Home page: http://www.psychosomaticmedicine.org/
This journal appears to be largely or completely available as full-text on the web. It contains a few other attachment theory related articles but based on my browsing these seemed to be of most interest to psychologists.
Ciechanowski, P.S., Russo, J.E., Katon, W.J., Von Korff, M., Ludman, E., Lin, E., Simon, G., & Bush, T. (2004). Influence of Patient Attachment Style on Self-care and Outcomes in Diabetes. Psychosomatic Medicine, 66, 720-728.
Ciechanowski, P.S., Walker, E.A., Katon, W.J., & Russo, J.E. (2002). Attachment Theory: A Model for Health Care Utilization and Somatization. Psychosomatic Medicine, 64, 660-667.
Maunder, R.G., & Hunter, J.J. (2001). Attachment and Psychosomatic Medicine: Developmental Contributions to Stress and Disease. Psychosomatic Medicine, 63, 556-567.