1. Abramson, L. Y., Metalsky, G. I., & Alloy, L. B. (1989). Hopelessness depression: A theory-based subtype of depression. Psychological Review, 96, 358–372.
2. Chiros, C., & O’Brien, W. H. (2011). Acceptance, appraisals, and coping in relation to migraine headache: An evaluation of interrelationships using daily diary methods. Journal of Behavioral Medicine, 34, 307–320.
3. Hudcova, J., McNicol, E., Quah, C., Lau, J., & Carr, D. B. (2006). Patient controlled opioid analgesia versus conventional opioid analgesia for postoperative pain. Cochrane Database of Systematic Reviews, 18, CD003348.
4. Johnson, L. R., Magnani, B., Chan, V., & Ferrante, F. M. (1989). Modifiers of patient-controlled analgesia efficacy. I. Locus of control. Pain, 39, 17–22.
5. Lawrence, W., & Barker, M. (2009). A review of factors affecting the food choices of disadvantaged women. Proceedings of the Nutrition Society, 68, 189–194.