Polkey Michael I, Griffiths Mark J, Kemp Paul R
1 National Institute for Health Research Respiratory Biomedical Research Unit Royal Brompton and Harefield National Health Service Foundation Trust and Imperial College London, United Kingdom and.
2 National Heart and Lung Institute Imperial College London, United Kingdom.
Am J Respir Crit Care Med. 2016 Oct 1;194(7):780-782. doi: 10.1164/rccm.201603-0633ED.