[1] Tel Aviv Univ, Wolfson Med Ctr, Dept Anesthesia, IL-58100 Holon, Israel
[2] Tel Aviv Univ, Wolfson Med Ctr, Dept Gen Intens Care, IL-58100 Holon, Israel
[3] Outcomes Res Consortium, Cleveland, OH USA
[4] Tel Aviv Univ, Wolfson Med Ctr, Dept Epidemiol Unit, IL-58100 Holon, Israel
[5] Naharia Med Ctr, Dept Anesthesia, Nahariyya, Israel
[6] Kocaeli Univ, Dept Anesthesiol & Reanimat, Kocaeli, Turkey
[7] Rebecca Sief Med Ctr, Dept Anesthesia, Zefad, Israel