TY - STAND AU - R. Costello AU - C. Jacklin AU - Jameson Evans AU - J. McBeth AU - W. Dixon BT - RMD Open DO - 10.1136/rmdopen-2018-000664 M1 - 1 PY - 2018 EP - e000664 T2 - RMD Open TI - Representativeness of a digitally engaged population and a patient organisation population with rheumatoid arthritis and their willingness to participate in research: a cross-sectional study VL - 4 SN - 2056-5933 (Print) 2056-5933 ER -