[1] Copenhagen Univ Hosp Herlev & Gentofte, Dept Emergency Med, DK-2730 Herlev, Denmark
[2] Copenhagen Univ Hosp, Steno Diabet Ctr Copenhagen, Dept Clin Res, DK-2730 Herlev, Denmark
[3] Univ Copenhagen, Fac Hlth & Med Sci, Dept Clin Med, DK-2200 Copenhagen, Denmark
[4] Karolinska Inst, Div Nursing, Dept Neurobiol Care Sci & Soc, S-17177 Stockholm, Sweden
[5] Copenhagen Univ Hosp Herlev & Gentofte, Dept Gastroenterol, DK-2750 Herlev, Denmark