1. Department of Anaesthesiology, University of Athens School of Medicine, Aretaieio Hospital, Athens, Greece
2. Laboratory of Biopharmaceutics and Pharmacokinetics, University of Athens School of Pharmacy, Athens, Greece
3. Microbiology Laboratory, University of Athens School of Medicine, Aretaieio Hospital, Athens, Greece
4. 2nd Department of Surgery, University of Athens School of Medicine, Aretaieio Hospital, Athens, Greece