[1] Aarhus Univ Hosp, Dept Intens Care, Palle Juul Jensens Blvd 99, DK-8200 Aarhus N, Denmark
[2] Aarhus Univ, Inst Publ Hlth, Sect Nursing, Bartholins Alle 2,3 Sal,Bldg 1260, DK-8000 Aarhus C, Denmark
[3] VIA Univ Coll, Res Ctr Hlth & Welf Technol, Campus Aarhus N,Hedeager 2, Aarhus, Denmark
[4] Univ Hosp Southern Denmark, Dept Anaesthesiol & Intens Care, Sygehusvej 24, DK-6000 Kolding, Denmark
[5] Univ Southern Denmark, Dept Reg Hlth Res, Winslovspk 19,3, DK-5000 Odense C, Denmark
[6] Univ Hosp Southern Denmark, Kolding Hosp, Dept Anaesthesiol, Kolding, Denmark
[7] Univ Hosp Southern Denmark, Kolding Hosp, Dept Intens Care, Kolding, Denmark
[8] Univ Hosp Southern Denmark, Vejle Hosp, Dept Anaesthesiol, Vejle, Denmark
[9] Univ Hosp Southern Denmark, Vejle Hosp, Dept Intens Care, Vejle, Denmark
[10] Univ Southern Denmark, Dept Reg Hlth Res, Odense, Denmark