Correction
==========


Kemp SV, El Batrawy SH, Harrison RN, *et al*. Learning curves for endobronchial ultrasound using cusum analysis. [Thorax 2010;65:534–8](http://thorax.bmj.com/lookup/doi/10.1136/thx.2009.127274). The author name A Roselli should have read A Rosell.