1 Medical Supervision S.A. Private Medical Center, Athens, Greece.
2 Department of Anesthesiology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larisa, Greece. thanoschalkias@yahoo.gr.
3 Hellenic Society of Cardiopulmonary Resuscitation, Athens, Greece. thanoschalkias@yahoo.gr.
4 Department of Anesthesiology, University Hospital of Larisa, C' Wing, 2nd Floor, PC 41110 Mezourlo, Larisa, Greece. thanoschalkias@yahoo.gr.
5 Department of Surgery, 1st Propaedeutic Surgical Clinic, National and Kapodistrian University of Athens, Athens, Greece.
6 Experimental-Research Center BELPEN^ Pharmaceutical Co, Athens, Greece.
7 Department of Biopathology - Microbiology and Biochemistry, Aretaieion University Hospital, National and Kapodistrian University of Athens, Athens, Greece.
8 School of Medicine, European University Cyprus, Nicosia, Cyprus.