The health risks and benefits of cycling in urban environments compared with car use: health impact assessment studyBMJ 2011; 343 doi: https://doi.org/10.1136/bmj.d5306 (Published 17 August 2011) Cite this as: BMJ 2011;343:d5306
In this research article by David Rojas-Rueda and colleagues (BMJ 2011;343:d4521, doi:10.1136/bmj.d4521) the ninth reference was incorrect. It should have been:
9. De Hartog JJ [not Johan H], Boogaard H, Nijland H, Hoek G. Do the health benefits of cycling outweigh the risks? Environ Health Perspect 2010;118:1109-16.
Cite this as: BMJ 2011;343:d5306