Harron Katie, Wade Angie, Muller-Pebody Berit, Goldstein Harvey, Gilbert Ruth
Institute of Child Health, University College London, 30 Guilford Street, London WC1N 1EH, UK.
J Epidemiol Community Health. 2012 Dec;66(12):1198. doi: 10.1136/jech-2012-201376. Epub 2012 Jun 15.