2) Aaron G, Jodean H, Sheldon E et al. Sciatica of nondisc origin and piriformis syndrome: diagnosis by magnetic resonance neurography and interventional magnetic resonance imaging with outcome study of resulting treatment. J Neurosurg Spine. 2005 ; 2 : 99-115.
4) Donelson R, Aprill C, Medcalf R et al. A prospective study of centralization of lumbar and referred pain. A predictor of symptomatic discs and anular competence. Spine. 1997 ; 22 : 1115-1122.
5) Donelson R. The McKenzie approach to evaluating and treating low back pain. Ortop Rev. 1990 ; 19 : 681-686.