1. Department of Nursing Science; Finnish Post-Graduate School in Nursing Science; University of Turku; Turku Finland
2. Department of Nursing Science; University of Turku; Turku Finland
3. Department of Nursing Science; School of Health Sciences; University of Tampere; Tampere Finland
4. Department of Intensive Care; Turku University Hospital; Turku Finland
5. CNS Helsinki University Hospital, ; University of Turku; Helsinki Finland
6. Department of Biostatistics; University of Turku; Turku Finland
7. Department of Nursing Science and South-Western Hospital District; University of Turku; Turku Finland