Philippa Howden-Chapman, Nevil Pierse, Sarah Nicholls, Julie Gillespie-Bennett, Helen Viggers, Malcolm Cunningham, Robyn Phipps, Mikael Boulic, Pär Fjällström, Sarah Free, Ralph Chapman, Bob Lloyd, Kristin Wickens, David Shields, Michael Baker, Chris Cunningham, Alistair Woodward, Chris Bullen, Julian Crane
BMJ. 2008; 337: a1411. Published online 2008 Sep 23. doi: 10.1136/bmj.a1411