@misc{8476, author = {R. Costello and C. Jacklin and Jameson Evans and J. McBeth and W. Dixon}, title = {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}, year = {2018}, journal = {RMD Open}, volume = {4}, number = {1}, pages = {e000664}, issn = {2056-5933 (Print) 2056-5933}, doi = {10.1136/rmdopen-2018-000664}, }