Author J. Prior F. Crawford-Manning R. Whittle A. Abdul-Sultan C. Chew-Graham S. Muller T. Shepherd A. Sumathipala C. Mallen Z. Paskins Year of Publication 2021 DOI 10.1186/s12891-021-04631-9 DOIGoogle ScholarBibTeXEndNote X3 XMLEndNote 7 XMLEndnote taggedMarcRIS