RT Journal Article SR Electronic T1 Surrogate outcomes are associated with low methodological quality of studies of rheumatoid arthritis treated with antitumour necrosis factor agents: a systematic review JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 3 OP 7 DO 10.1136/ebm-2011-100058 VO 17 IS 1 A1 Moacyr Roberto Cuce Nobre A1 Frnanda Marques da Costa YR 2012 UL http://ebm.bmj.com/content/17/1/3.abstract AB