1. Behavioral methods in chronic pain and illness;Fordyce,1976
2. Behavioral assessment and treatment of chronic pain;Keefe;J Consult Clin Psychol,1982
3. Pain and behavioral medicine: a cognitive behavioral perspective;Turk,1983
4. The contribution of psychological factors to the experience of chronic pain;Turk,1992
5. Failure in the operant treatment of chronic pain;Follick,1983