RT Journal Article SR Electronic T1 Review: no single physical examination sign rules in or out osteoporosis or spinal fracture JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 123 OP 123 DO 10.1136/ebm.10.4.123 VO 10 IS 4 YR 2005 UL http://ebm.bmj.com/content/10/4/123.abstract AB