[1] Univ Orebro, Sch Hlth & Med Sci, S-70182 Orebro, Sweden
[2] Linnaeus Univ, Sch Hlth & Caring Sci, Kalmar, Sweden
[3] Linkoping Univ, Dept Med & Hlth Sci, S-58183 Linkoping, Sweden
[4] Ersta Skondal Univ Coll, Dept Palliat Care Res, Stockholm, Sweden
[5] Karolinska Inst, Dept Neurobiol Care Sci & Soc, Div Nursing, S-10401 Stockholm, Sweden
[6] Stockholms Sjukhem Fdn, Res & Dev Unit, Stockholm, Sweden
[7] Gjovik Univ Coll, Dept Nursing, Gjovik, Norway