1. Chronic low back pain (CLO-BAP);Addison;Clin J Pain,1985
2. The vertebral vein system, Caldwell Lecture, 1956;Batson,1981
3. Historical, socioeconomic and diagnostic aspects of the problem. 1 The Nature of the Problem;Bonica,1982
4. Low Back Pain Syndrome;Cailliet,1981
5. Neck and Arm Pain;Cailliet,1981