[1] Univ Pecs, Inst Translat Med, Med Sch, H-7624 Pecs, Hungary
[2] Szent Gyorgy Univ, Teaching Hosp Fejer Cty, H-8000 Szekesfehervar, Hungary
[3] Hinchingbrooke Hosp, Anaesthet Dept, North West Anglia NHS Fdn Trust, Huntingdon PE29 6NT, England
[4] Poznan Univ Med Sci, Dept Anesthesiol & Intens Therapy, PL-61701 Poznan, Poland
[5] Markusovszky Teaching Hosp, Dept Anesthesiol & Intens Therapy, H-9700 Szombathely, Hungary
[6] Univ Szeged, Multidisciplinary Doctoral Sch, H-6720 Szeged, Hungary