1 Clinical Ergophysiology and Exercise Physiology Laboratory, Department of Physical Education and Sport Science, Democritus University of Thrace, Panepistimioupoli, 69100 Komotini, Greece.
2 1st Critical Care Department, Evangelismos General Hospital, Department of Medicine, National and Kapodistrian University of Athens, 45-47 Ypsilantou Str., 106 75 Athens, Greece.
3 Immunology and Histocompatibility Department, Evangelismos General Hospital, 45-47 Ypsilantou Str, 106 75 Athens, Greece.
4 Department of Clinical Therapeutics, University of Athens, Alexandra General Hospital, 80 Vassilissis Sofias Av., 115 28 Athens, Greece.