Author C. Murray S. Kingsbury N. Arden J. Hewison A. Judge J. Matu J. O\textquoterightShea R. Pinedo-Villanueva L. Smith C. Smith C. Thomas R. West J. Wright P. Conaghan M. Stone Year of Publication 2019 DOI 10.1136/bmjopen-2019-031351 DOIGoogle ScholarBibTeXEndNote X3 XMLEndNote 7 XMLEndnote taggedMarcRIS