1 Department of Anesthesiology, Gødstrup Hospital, Lægårdvej 12, 7500 Holstebro, Denmark. Electronic address: annsve@rm.dk.
2 Section for Nursing, Department of Public Health, Aarhus University, Building 1260, Bartholins Allé 2, 8000 Aarhus C, Denmark. Electronic address: angel@ph.au.dk.
3 University of Copenhagen, Health and Medical Sciences, Blegdamsvej 3B, 2200 Copenhagen N, Denmark; Intensive Care Unit 4131, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen Ø, Denmark. Electronic address: ingrid.egerod@regionh.dk.