RT Journal Article SR Electronic T1 Arthroscopic surgery was not effective for relieving pain or improving function in osteoarthritis of the knee JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 56 OP 56 DO 10.1136/ebm.8.2.56 VO 8 IS 2 YR 2003 UL http://ebm.bmj.com/content/8/2/56.abstract AB