1. K Ek (corresponding author) School of Health and Medical Sciences, Örebro University, Fakultetsgatan 1, S-701 82, Örebro, Sweden;
2. Department of Palliative Care Research, Ersta Sköndal University College, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, and StockholmsSjukhem Foundation, Research and Development Department, Stockholm, Sweden
3. Department of Nursing, Gjøvik University College, Gjøvik, Norway, Department of Palliative Care Research, Ersta Sköndal University College, Stockholm, and School of Health and Medical Sciences, Örebro University, Örebro, Sweden;
4. School of Health and Medical Sciences, Örebro University, Örebro, Sweden