Comment on

• Lung clearance index is a repeatable and sensitive indicator of radiological changes in bronchiectasis.

  Rowan SA, Bradley JM, Bradbury I, Lawson J, Lynch T, Gustafsson P, Horsley A, O'Neill K, Ennis M, Elborn JS. Rowan SA, et al. Am J Respir Crit Care Med. 2014 Mar 1;189(5):586-92. doi: 10.1164/rccm.201310-1747OC. Am J Respir Crit Care Med. 2014. PMID: 24428575 Clinical Trial.
• Lung clearance index in primary ciliary dyskinesia and bronchiectasis.

  Irving SJ, Davies JC, Alton EW, Bush A. Irving SJ, et al. Am J Respir Crit Care Med. 2014 May 1;189(9):1147-8. doi: 10.1164/rccm.201402-0206LE. Am J Respir Crit Care Med. 2014. PMID: 24787071 No abstract available.