RT Journal Article SR Electronic T1 A 29-year-old woman with back pain and a lumbar mass JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 152 OP 157 VO 55 IS 2 A2 Melinda L. Estes A1 Richard J. Lederman A1 Srinivasan Vijayakumar A1 Russell W. Hardy A1 H. Faleck A1 Scott A. Rosenbloom YR 1988 UL http://www.ccjm.org/content/55/2/152.abstract AB