1. Measurement of Subjective Responses. Quantitative Effects of Drugs;Beecher,1959
2. Learning processes in pain;Fordyce,1978
3. MMPI profiles in patients with low-back pain;Hanvik;J. consult. Psychol.,1951
4. Neurophysiological foundations of pain;Melzack,1978
5. Stress and distress;Meyers;Proc. Am. Occup. Med. Ass.,1979