References

- http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0002180/
- http://www.sciencedirect.com.libwww3.np.edu.sg/science/article/pii/S1096719211001314
- http://www.rarediseasecommunities.org/en/community/alkaptonuria-aku/news
- http://www.ncbi.nlm.nih.gov/books/NBK1454/
- http://www.youtube.com/watch?v=vGxVvdp4mx0
- http://www.medicinenet.com/alkaptonuria/article.htm
- http://www.patient.co.uk/doctor/Alkaptonuria.htm
- http://www.ncbi.nlm.nih.gov/books/NBK1454/?report=printable
- http://clinicaltrials.gov/ct2/show/NCT00107783
- http://www.sciencedirect.com.libwww3.np.edu.sg/science/article/pii/S002604950500017X
- http://ghr.nlm.nih.gov/condition/alkaptonuria
- http://ghr.nlm.nih.gov/gene/HGD
- http://www.nlm.nih.gov/medlineplus/ency/article/001200.htm
- http://emedicine.medscape.com/article/941530-treatment
- http://emedicine.medscape.com/article/941530-followup#a2648
- http://www.ncbi.nlm.nih.gov/books/NBK1454/
-  http://www.bmj.com/content/343/bmj.d5155.long

Image References:
- http://www.bjui.org/BJUI_IMAGES/cute_editor/case_reports/case%202%20image%204.jpg
- http://www.ijdvl.com/articles/2008/74/6/images/ijdvl_2008_74_6_700_45142_f2.jpg
- http://bjo.bmj.com/content/83/6/680/F1.large.jpg
- http://www.rheumatoidarthritistreatment101.com/wp-content/uploads/2011/04/2.jpg