Further information can be found at:

An Interactive Learning Tool about Sciatica with Steven R. Garfin, M.D.
What is Sciatica: Answers to FAQ's From Dr. Albert I. Rodriquez
What is Sciatica?
What is a Pinched Nerve?
The Assessment of the Patient with Pain
Treatment Options for Ruptured Discs in the Low Back
Low Back Pain: Getting to the Root of the Problem
Causes of Pain
About the Back and Back Problems

Degenerative Disc Disease & Sciatica (Asia MedicineNet.com)
Sciatica (Asia MedicineNet.com)
Sciatic nerve and back pain and leg pain
Radiculopathy, definition, sciatica, back pain (Asia MedicineNet.com)