References
- Patijn J, Ellis RM. Low back pain: reproducibility of diagnostic procedures in manual/musculoskeletal medicine. J. Orthopaedic Med., 2001; 23: 36–42.
- Waddell G, McCulloch JA, Kummel E, Venner RM. Nonorganic physical signs in low-back pain. Spine, 1980; 5: 117–25
- Kummel BM. Nonorganic signs of significance in low back pain. Spine, 1996; 21: 1077–81
- Main CJ, Waddell G. Behavioral responses to examination. A reappraisal of the interpretation of “nonorganic signs”. Spine, 1998;21:2367–71
- Newton M, Waddell G. Trunk strength testing with iso-machines. Part 1: review of a decade of scientific evidence. Spine, 1993; 18: 801–11
- Moffet JK, Torgerson D, Bell-Syer S, et al. Randomised controlled trial of exercise for low back pain. Brit.med.J. 1999; 319:279–83
- Williams AcdeC, Richardson PH, Nicholas MK, Pither CE et al. Inpatient versus outpatient pain management: results of a randomised controlled trial. Pain, 1996; 66: 13–22
- Andersson GBJ, Svensson O, Oden A. The intensity of work recovery in low back pain. Spine, 1983; 8: 880–4