[1] Dubrava Univ Hosp, Dept Anesthesiol Resuscitat & Intens Med, Zagreb, Croatia
[2] Univ Zagreb, Sch Dent Med, Zagreb, Croatia
[3] Dubrava Univ Hosp, Dept Surg, Zagreb, Croatia
[4] Dubrava Hosp, Dept Anesthesiol Resuscitat & Intens Med, Ave Gojka Suska 12, HR-10000 Zagreb, Croatia