Correction to: Journal of Exposure Science and Environmental Epidemiology advance online publication, 23 June, 2010; doi:10.1038/jes.2010.27

After the above article was published online, one of the authors noticed that there was a mistake in the running head of the paper regarding the lead author's name.

The correct running head appears below:

Zauli Sajani et al.

Comparison of different exposure settings in a case–crossover study on air pollution and daily mortality.