1McKenzie R, May S. The lumbar spine mechanical diagnosis & therapy.2^nd ed. Waikanae:Spinal Publications New Zealand Ltd,2^nd Ed. 2003.
2Andersson GB. Epidemiological features of chronic low-back pain. Lancet, 1999,354:581-585.
3Papageorgiou AC, Croft PR, Ferry S, et al. Estimating the prevalence of low back pain in the general population. Evidence from the South Manchester Back Pain Survey. Spine, 1995,20 : 1889-1894.
4Papageorgiou AC, Croft PR,Thomas E, et al, Influence of previous pain experience on the episode incidence of low back pain:results from the South Manchestor Back Pain Study. Pain, 1996,66 : 181-185.
5Linton S J, Hellsing AL, Hallden K. A population-based study of spinal pain among 35- 45-year-old individuals, Prevalence, sick leave, and health care use. Spine, 1998,23 : 1457-1463.
6Leboeuf-Yde C, Klougart N,Lauritzen T. How common is low back pain in the Nordic population? Data from a recent study on a middle-aged general Danish population and four surveys previously conducted in the Nordic countries, Spine, 1996,21 : 1518-1526.
7Wood-Dauphinee SL. Assessment of back-related quality of life:the continuing challenge. Spine,2001,26 : 857- 861.
8Koes BW, van Tulder MW, Ostelo R, et al. Clinical guidelines for the management of low back pain in primary care:an international comparison. Spine,2001,26:2504-2514.
9Clare HA,Adams R,Maher CG. A systematic review of efficacy of Mc-Kenzic therapy for spinal pain. Aust J Physiother,2004 ,50 :209-216.
10Fritz JM, Delitto A, Erhard RE, Comparison of classification-based physical therapy with therapy based on clinical practice guidelines for patients with acute low back pain : a randomized clinical trial, Spine,2003,28:1363-1372.
