1. Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, 02-091 Warsaw, Poland
2. Students’ Research Group ‘Alveolus’, Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, 02-091 Warsaw, Poland
3. 2nd Department of Clinical Radiology, Medical University of Warsaw, Banacha 1A, 02-097 Warsaw, Poland