MedlinePlus Medical Encyclopedia: Homocystinuria
- Learn about this condition, the causes, symptoms, treatment, prognosis, and complications.
- http://www.nlm.nih.gov/medlineplus/ency/article/001199.htm

NORD: Homocystinuria
- Offers alternative names, a general discussion and further resources.
- http://www.rarediseases.org/search/rdbdetail_abstract.html?disname=Homocystinuria