Correction for funding information Philip Bejon, Nuffield Department of Medicine, University of Oxford 4 February 2011 The funding information should read "P. Bejon is supported by the NIHR Biomedical Research Centre Oxford" Competing interests None
Correction for funding information
4 February 2011
The funding information should read "P. Bejon is supported by the NIHR Biomedical Research Centre Oxford"
Competing interests
None