Author P. Bidulka S. O\textquoterightNeill A. Basu S. Wilkinson R. Silverwood P. Charlton A. Briggs A. Adler K. Khunti L. Tomlinson L. Smeeth I. Douglas R. Grieve Year of Publication 2021 DOI 10.1136/bmjopen-2020-046912 Google ScholarDOIBibTeXEndNote X3 XMLEndNote 7 XMLEndnote taggedMarcRIS