Author M. Doyle D. While P. Mok K. Windfuhr D. Ashcroft E. Kontopantelis C. Chew-Graham L. Appleby J. Shaw R. Webb Year of Publication 2016 DOI 10.1186/s12875-016-0479-y DOIGoogle ScholarBibTeXEndNote X3 XMLEndNote 7 XMLEndnote taggedMarcRIS
