1. Epidemiology of back pain;Wood,1980
2. Chronic pain: its social dimensions;Kortaba,1983
3. Scientific approach to the assessment and management of activity-related spinal disorders: a monograph for clinicians;Quebec Task Force on Spinal Disorders;Spine,1987
4. The challenge of pain;Melzack,1982
5. Transcutaneous nerve stimulation and pain;Eriksson,1983