2. http://www.aafp.org/afp/2007/1115/p1497.html
3. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2684949/
4. https://www.herniated-disc-pain.org/annulus-fibrosus.html
5. none
6. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2100271/
7. https://www.herniated-disc-pain.org/posterolateral-herniated-disc.html
8. http://www.orthobullets.com/spine/2035/lumbar-disc-herniation
9. https://www.kenhub.com/en/library/anatomy/tibialis-anterior-muscle
10. https://www.spine-health.com/wellness/exercise/what-mckenzie-method-back-pain-and-neck-pain
11. https://www.spine-health.com/wellness/exercise/what-mckenzie-method-back-pain-and-neck-pain
12. http://www.orthobullets.com/spine/2032/cervical-stenosis
14. http://www.orthobullets.com/spine/2058/pediatric-spondylolisthesis-and-spondylolysis
15. http://www.orthobullets.com/spine/2058/pediatric-spondylolisthesis-and-spondylolysis
16. https://my.clevelandclinic.org/health/diseases/10302-spondylolisthesis
17. http://www.orthobullets.com/spine/2053/adolescent-idiopathic-scoliosis
18. http://www.orthobullets.com/spine/2061/scheuermanns-kyphosis
19. http://www.ncbi.nlm.nih.gov/pubmed/23174554
20. http://www.youtube.com/watch?v=pvsDU6IJoSc
21. http://jama.jamanetwork.com/article.aspx?articleid=354819
22. http://www.orthobullets.com/spine/2049/atlantoaxial-instability
23. http://my.clevelandclinic.org/disorders/back_pain/hic_spondylolisthesis.aspx
24. http://my.clevelandclinic.org/disorders/back_pain/hic_spondylolisthesis.aspx
25. http://radiopaedia.org/articles/clay-shoveler-fracture-2
26. http://emedicine.medscape.com/article/1144952-overview
27. http://www.ncbi.nlm.nih.gov/pubmed/12524564
28. http://radiopaedia.org/articles/cervical-spine-fractures
29. http://www.sciencedirect.com/topics/neuroscience/dorsal-scapular-nerve