[1] Univ Spital Zurich, Ctr Comprehens Canc, Zurich, Switzerland
[2] Univ Witten Herdecke, Dept Nursing Sci, PhD Program, Witten, Germany
[3] Kantonsspital Glarus AG, Glaru, Switzerland
[4] Triaplus AG Klin Zugersee Zentrum Psychiat & Psyc, Oberwil Z, Switzerland
[5] Univ Basel, Pflegewissensch Nursing Sci, Basel, Switzerland