[1] St. Elizabeth’s Cancer Institute,Dept. of Anesthesiology and ICU
[2] University Hospital UPJS,Dept. of Anesthesiology and Intensive Medicine
[3] Trauma Center Hospital Kosice,Dept. of Anesthesia and ICU
[4] National Cancer Institute Bratislava,Dept. of Anesthesia and ICU
[5] National Institute of Cardiovascular Disease,Dept. of Anesthesia and ICU
[6] Eli Lilly sro,Dept. of Anesthesia and ICU
[7] District Hospital,Dept.of Anesthesia and ICU
[8] District Hospital Levice,undefined