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1 Thoracic Department, Haukeland University Hospital, Bergen, Norway; Faculty of Health and Social Sciences, Western Norway University of Applied Sciences, Bergen, Norway.
2 NMCCC, The National Hospital for Neurology and Neurosurgery, University College London Hospitals 6 Foundation Trust, London WC1N 3BG, UK; Clinical and Academic Department of Sleep and Breathing, Royal Brompton Hospital, Part of Guys and St 8 Thomas' NHS Foundation Trust, London SW3 6NP, UK.
3 Servei de Pneumologia, Parc Taulí Hospital Universitari, Institut Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autónoma de Barcelona, Sabadell, Spain; Centro de Investigación Biomédica en Red, Madrid, Spain. Electronic address: mlujan@tauli.cat.
1 Thoracic Department, Haukeland University Hospital, Bergen, Norway; Faculty of Health and Social Sciences, Western Norway University of Applied Sciences, Bergen, Norway.
2 NMCCC, The National Hospital for Neurology and Neurosurgery, University College London Hospitals 6 Foundation Trust, London WC1N 3BG, UK; Clinical and Academic Department of Sleep and Breathing, Royal Brompton Hospital, Part of Guys and St 8 Thomas' NHS Foundation Trust, London SW3 6NP, UK.
3 Servei de Pneumologia, Parc Taulí Hospital Universitari, Institut Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autónoma de Barcelona, Sabadell, Spain; Centro de Investigación Biomédica en Red, Madrid, Spain. Electronic address: mlujan@tauli.cat.