1. The neurology of low back pain;Wyke,1980
2. The Puzzle of Pain;Melzack,1973
3. Emotional adjustment and chronic pain;Mersky;Pain,1978
4. Chronic low-back pain and depression: an epidemiologic survey;Magno;Acta Psychiatr Scand,1984
5. Chronic low-back pain. A medical–psychological report;Menges;Soc Sci Med,1983