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 DOIGoogle ScholarBibTeXEndNote X3 XMLEndNote 7 XMLEndnote taggedMarcRIS