[1] Hellen Mediterranean Univ, Sch Hlth Sci, Dept Nursing, Iraklion 71410, Crete, Greece
[2] Univ Hosp Heraklion, Dept Neurosurg, Iraklion 71500, Crete, Greece
[3] Univ Thessaly, Dept Nursing, Gaiopolis, Larisa 41500, Greece
[4] Princess Nourah bint Abdulrahman Univ, Coll Nursing, Dept Community Hlth Nursing, POB 84428, Riyadh 11671, Saudi Arabia
[5] Princess Nourah bint Abdulrahman Univ, Coll Nursing, Nursing Management & Educ Dept, POB 84428, Riyadh 11671, Saudi Arabia
[6] Univ Patras, Dept Math, Rion 26504, Greece
[7] 424 Gen Army Training Hosp, Thessaloniki 56429, Greece
[8] 401 Gen Mil Hosp Athens, Athens 11525, Greece