Diagnosis and Management of Lumbar Spine Stenosis
JAMA 303:71-72, Haig,A. &Tomkins,C., 2010
Prolonged Conservative Care Versus Early Surgery in Patients With sciatica Caused by Lumbar Disc Herniation: Two Year Results of a Randomised Controlled Trial
BMJ 336:1355-1358, Peul,W.C.,et al., 2008
Surgery versus Prolonged Conservative Treatment for Sciatica
NEJM 356:2245-2256,2239, Peul,W.C.,et al, 2007