[1] Karolinska Inst, Acad EMS, Dept Clin Sci & Educ, Sodersjukhuset, Stockholm, Sweden
[2] Dept Neurobiol Care Sci & Soc, Div Nursing, Stockholm, Sweden
[3] Karolinska Inst, Stockholm City Council, Dept Clin Sci & Educ, Sodersjukhuset, Stockholm, Sweden
[4] Karolinska Inst, Ambulance Med Serv Stockholm AISAB Sweden, Acad EMS, Dept Clin Sci & Educ,Sodersjukhuset, Stockholm, Sweden
[5] Acad EMS, Div Nursing, Dept Neurobiol Care Sci & Soc, Stockholm, Sweden