Questionnaire, the Oxford Spinal Stenosis Score, and the Oswestry Disability Index in the assessment of patients with lumbar spinal stenosis. Spine Whila Pa 1976) 2002;27:84-91. (18] Koc Z, Ozcakir S,Sivrioglu K, eel. Effectiveness of physical therapy and epidural steroid injections in lumbar spinal

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