[1] Antwerp Univ Hosp, Edegem, Belgium
[2] Univ Antwerp, Edegem, Belgium
[3] Monash Univ, Monash Sustainable Dev Inst, BehaviourWorks Australia, Melbourne, Australia
[4] Univ British Columbia, Vancouver Coastal Hlth Res Inst, Djavad Mowafaghian Ctr Brain Hlth, Dept Psychol, Vancouver, BC, Canada
[5] Lund Univ, Hallands Hosp Halmstad, Dept Operat & Intens Care, Lund, Sweden
[6] Salford Royal Hosp, Emergency Dept, Salford, England
[7] Univ Sheffield, Ctr Urgent & Emergency Care Res, Sch Hlth & Related Res, Hlth Serv Res Sect, Sheffield, England
[8] Antwerp Univ Hosp, Dept Neurosurg, Drie Eikenstr 655, B-2650 Edegem, Belgium