Author M. Gulliford T. Van Staa A. Dregan L. McDermott G. McCann M. Ashworth J. Charlton P. Little M. Moore L. Yardley Year of Publication 2014 DOI 10.1370/afm.1659 DOIGoogle ScholarBibTeXEndNote X3 XMLEndNote 7 XMLEndnote taggedMarcRIS