[1] Univ Malaga, Sch Med, Dept Surg Specialties Biochem & Immunol, Malaga, Spain
[2] Nottingham Univ Hosp, Natl Inst Hlth Res Biomed Res Unit, Nottingham Digest Dis Ctr, Dept Colorectal Surg, Nottingham, England
[3] Univ Hosp Mar Esperanza, Dept Anaesthesia, Barcelona, Spain
[4] UCL, Div Surg, London, England
[5] Univ Hosp Virgen de la Victoria, Dept Internal Med, Malaga, Spain
[6] Launceston Gen Hosp, Dept Haematol & Med, Launceston, Tas, Australia
[7] Univ Tasmania, Menzies Inst Med Res, Hobart, Tas, Australia
[8] Copenhagen Univ Hosp, Rigshosp, Sect Surg Pathophysiol, Copenhagen, Denmark
[9] Evangel Hosp, Dept Anaesthesia & Intens Care, Vienna, Austria
[10] Natl Inst Hlth, Italian Natl Blood Ctr, Rome, Italy
[11] Univ Hosp Frankfurt, Dept Anaesthesiol Intens Care Med & Pain Therapy, Frankfurt, Germany
[12] Royal Marsden NHS Fdn Trust, Dept Anaesthesia, London, England
[13] Englewood Hosp & Med Ctr, Anaesthesiol Crit Care & Hyperbar Med, Englewood, NJ USA
[14] TeamHlth Res Inst, Englewood, NJ USA
[15] Sanquin Blood Bank, Dept Transfus Med, Amsterdam, Netherlands
[16] Groene Hart Hosp, Dept Internal Med, Gouda, Netherlands
[17] Univ Hosp Zurich, Inst Anaesthesiol, Zurich, Switzerland
[18] Univ Hosp Zurich, Anaesthesiol Intens Care Med & Operating Room Man, Zurich, Switzerland
[19] Royal Papworth Hosp, Dept Anaesthesia & Intens Care, Cambridge, England