RT Journal Article SR Electronic T1 Implications of the Spine Patient Outcomes Research Trial in the clinical management of lumbar disk herniation JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 572 OP 576 VO 74 IS 8 A1 Bell, Gordon R. YR 2007 UL http://www.ccjm.org/content/74/8/572.abstract AB