Patient-reported outcomes better discriminate active treatment from placebo in randomized controlled trials in rheumatoid arthritis.
Rheumatology (Oxford). 2004 May;43(5):640-7. doi: 10.1093/rheumatology/keh140. Epub 2004 Mar 23.
Rheumatology (Oxford). 2004.
PMID: 15039493
Clinical Trial.