1. http://www.aafp.org/afp/2011/0315/p697.html

2. http://www.aafp.org/afp/2011/0315/p697.html

3. http://www.aafp.org/afp/2011/0315/p697.html

4. http://www.aafp.org/afp/2011/0315/p697.html

5. http://mda.org/disease/friedreichs-ataxia/signs-and-symptoms

6. none

7. http://www.merriam-webster.com/dictionary/chorea

8. http://www.merriam-webster.com/medical/athetosis

9. http://www.ncbi.nlm.nih.gov/pubmed/14572734

10. http://www.medicinenet.com/script/main/art.asp?articlekey=33264

11. https://www.healthline.com/health/dysdiadochokinesia

12. http://www.aafp.org/afp/2011/0315/p697.html

http://onlinelibrary.wiley.com/doi/10.1113/expphysiol.1994.sp003763/pdf

13. http://www.aafp.org/afp/2011/0315/p697.html

14. none

15. http://www.ncbi.nlm.nih.gov/pubmed/19250855

16. http://www.hopkinsmedicine.org/neurology_neurosurgery/centers_clinics/restless-legs-syndrome/what-is-rls/causes.html

17. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2730785/

18. http://emedicine.medscape.com/article/1150165-overview#a0104