1. Laboratory of Molecular and Cellular Pneumonology, Medical School, University of Crete, 71110 Heraklion, Crete, Greece
2. Interstitial Lung Disease Unit, Royal Brompton and Harefield NHS Foundation Trust, London, UK
3. Laboratory of Clinical Virology, University of Crete, 71110 Heraklion, Crete, Greece
4. Department of Thoracic Medicine, University Hospital of Heraklion, 71110 Heraklion, Crete, Greece