1. Hellenic Perianaesthesia Nursing Organization, Chief Nurse of Surgery Sector, Hellenic Anticancer Institute ‘‘Saint Savvas’’ Hospital, Athens, Greece
2. Department of Nursing, Pediatric Research Laboratory, National and Kapodistrian University of Athens, Athens, Greece
3. Plastic and Reconstructive Clinic, “Saint Savvas” Hospital, Athens, Greece
4. Consultant Anesthesiologist, “Saint Savvas” Hospital, Athens, Greece
5. Department of Surgical Oncology, St Savvas Oncological Centre of Athens, Athens, Greece
6. Plastic and Reconstructive Clinic, Evaggelismos Hospital, Athens, Greece
7. Department of Nursing, National and Kapodistrian University of Athens, Athens, Greece