[1] Univ Athens, Fac Nursing, Athens 11528, Greece
[2] Evangelismos Gen Hosp Athens, Cardiac Surg Intens Care Unit, Athens 10676, Greece
[3] Amalia Fleming Gen Hosp Athens, Cardiac Intens Care Unit, Athens, Greece
[4] Univ Athens, Fac Nursing, Ctr Hlth Serv Management & Evaluat, Athens 11528, Greece
[5] Tzanio Gen Hosp Piraeus, Orthoped Clin, Piraeus, Greece
[6] Agios Georgios Gen Hosp Chania, Nursing Adm Off, Khania, Crete, Greece