[1] Univ Utrecht, Med Ctr, Dept Anaesthesiol, Div Perioperat Care & Emergency Care, NL-3508 GA Utrecht, Netherlands
[2] Beaumont Hosp, Dept Anaesthesia, Dublin 9, Ireland
[3] Univ Ziekenhuis Antwerpen, Dept Anaesthesiol, Edegem, Belgium
[4] Mater Hosp, Dept Anaesthesia & Intens Care Med, Dublin, Ireland
[5] Hop Zone, Serv Anesthesiol, Morges, Switzerland
[6] Carmel Hosp, Dept Anesthesiol, Haifa, Israel
[7] Krankenhaus Barmberzige Bruder, Dept Anaesthesiol, Vienna, Austria
[8] Univ Ljubljana, Med Ctr, Clin Dept Anaesthesiol, Ljubljana, Slovenia