Authors: Anouk Pijpe; Nadine Andrieu; Douglas F Easton; Ausrele Kesminiene; Elisabeth Cardis; Catherine Noguès; Marion Gauthier-Villars; Christine Lasset; Jean-Pierre Fricker; Susan Peock; Debra Frost; D Gareth Evans; Rosalind A Eeles; Joan Paterson; Peggy Manders; Christi J van Asperen; Margreet G E M Ausems; Hanne Meijers-Heijboer; Isabelle Thierry-Chef; Michael Hauptmann; David Goldgar; Matti A Rookus; Flora E van Leeuwen Journal: BMJ Date: 2012-09-06