MedlinePlus: Complex Regional Pain Syndrome
- Information, resources and links for disorder includes financial issues, clinical trials, overview, and organizations.
- http://www.nlm.nih.gov/medlineplus/reflexsympatheticdystrophy.html

National Institute of Neurological Disorders and Stroke: Complex Regional Pain Syndrome
- Condition commonly referred to as Causalgia and Reflex Sympathetic Dystrophy Syndrome. Provides information, description, and resources.
- http://www.ninds.nih.gov/disorders/reflex_sympathetic_dystrophy/reflex_sympathetic_dystrophy.htm

Interrupting the Sympathetic Outflow in Causalgia and Reflex Sympathetic Dystrophy
- An editorial from the British Medical Journal written by G.D. Schott.
- http://www.findarticles.com/m0999/n7134_v316/20440188/p1/article.jhtml