Chrysovitsiotis G, Papanikolaou V, Kyrodimos E, Giotakis E 1st E.N.T. Department of Faculty of Medicine, National and Kapodistrian University of Athens, Athens, Greece
Asteriou C, Lazopoulos A, Giannoulis N, Kalafatis I, Barbetakis N
Thoracic Surgery Department, Cardiology Department, Theagenio Cancer Hospital, Thessaloniki, Greecee