[1] Oslo Metropolitan Univ, Dept Nursing & Hlth Promot, Fac Hlth Sci, Oslo, Norway
[2] Univ Oslo, Inst Hlth & Soc, Dept Interdisciplinary Hlth Sci, Fac Med, Box 1089, N-0317 Oslo, Norway
[3] Lovisenberg Diaconal Univ Coll, Oslo, Norway
[4] Satakunta Univ Appl Sci, Fac Hlth & Welf, Pori, Finland
[5] Oslo Metropolitan Univ, Dept Physiotherapy, Fac Hlth Sci, Oslo, Norway
[6] Oslo Univ Hosp, Dept Transplantat Med, Oslo, Norway
[7] Lovisenberg Diaconal Hosp, Oslo, Norway