RT Journal Article SR Electronic T1 In reply: Medical causes of back pain (December 2007) JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 167 OP 167 VO 75 IS 3 A1 Mclain, Robert F. A1 Mazanec, Daniel J. A1 Klineberg, Eric YR 2008 UL http://www.ccjm.org/content/75/3/167.2.abstract AB