1Faculty of Medicine, University of Belgrade, Serbia
2Department of Pulmonology, University Hospital for Pulmonology, Clinical Center of Serbia, Belgrade, Serbia
3Department of History, Nottingham University Hospitals, City Campus, Hucknall Road, Nottingham NG5 1PB, UK
4Faculty of Medicine, Institute of Epidemiology, University of Belgrade, Serbia
5Department of Pulmonary Medicine, Izmir Training and Research Hospital for Thoracic Medicine and Surgery, Izmir, Turkey
*Corresponding Author:
Vesna Ceriman, Department of Pulmonology, University Hospital for Pulmonology, Clinical Center Of Serbia, Belgrade, Serbia, Tel: +381668300078 Email: