1 National Korányi Institute for Pulmonology, Budapest, Hungary. Electronic address: kerpel.anna@gmail.com.
2 Ontario Lung Screening Program, Prevention and Cancer Control, Ontario Health (Cancer Care Ontario), Toronto, Ontario, Canada; Department of Health Sciences, Brock University, St. Catharines, Ontario, Canada.
3 Department of Experimental Oncology, Institute for Oncology and Radiology of Serbia, Belgrade, Serbia.
4 Division of Respiratory Medicine and Thoracic Oncology Thoracic Oncology, LMU Klinikum der Universität München-Campus Innenstadt, Centre Munich University of Munich, Munich, Germany.