1. International Association for the Study of Pain: Classification of chronic pain: descriptions of chronic pain syndromes and definitions of pain terms. Pain 1986, Supplement 3:S1–S226.
2. Fernandez E: Anxiety, Depression, and Anger in Pain: Research Findings and Clinical Options. Dallas: Advanced Psychological Resources; 2002. This book reports on the epidemiology of pain in relation to anger and other affective disorders. It evaluates the mechanisms underlying such comorbidity and expands on the dynamic interactions between pain and affective phenomena such as anger, depression, and anxiety.
3. Lazarus RS: Cognition and motivation in emotion. Am Psychol 1991, 46:352–367.
4. Lazarus RS: Cognitive-motivational-relational theory of emotion. In Emotions in Sport. Edited by Hanin YL. Champaign, IL: Human Kinetics; 2000:39–63.
5. Buck R: Human Motivation and Emotion. Oxford, UK: Wiley & Sons; 1988.