RT Journal Article SR Electronic T1 Review: topical NSAIDs reduce pain in osteoarthritis only during the first 2 weeks of use JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 20 OP 20 DO 10.1136/ebn.8.1.20 VO 8 IS 1 YR 2005 UL http://ebn.bmj.com/content/8/1/20.abstract AB