[1] Red Cross Univ, Coll Nursing, SE-10215 Stockholm, Sweden
[2] Karolinska Inst, Div Nursing, Dept Neurobiol, Caring Sci & Soc, Stockholm, Sweden
[3] Karolinska Inst, Dept Clin Sci Intervent & Technol, Stockholm, Sweden
[4] Linnaeus Univ, Sch Hlth & Caring Sci, Vaxjo, Sweden