Article Text
Methods
Surrogate outcomes are associated with low methodological quality of studies of rheumatoid arthritis treated with antitumour necrosis factor agents: a systematic review
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Footnotes
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Funding Grant 551379/2007-3CNPq (Brazilian Council for Scientific and Technological Development) was awarded and financial resources were used to purchase softwares, equipment, scholarship and travel to scientific conference.
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Competing interest None.
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