Hollinghurst Sandra, Kessler David, Peters Tim J, Gunnell David
Academic Unit of Primary Health Care, Department of Community Based Medicine, University of Bristol, Bristol BS6 6JL.
BMJ. 2005 Apr 30;330(7498):999-1000. doi: 10.1136/bmj.38377.715799.F7. Epub 2005 Mar 18.