1. http://www.aafp.org/afp/2007/1115/p1497.html

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://informatics.med.nyu.edu/modules/pub/neurosurgery/reflexes.html

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

13. http://www.hopkinsmedicine.org/healthlibrary/conditions/cardiovascular_diseases/claudication_85,P08251/

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