Kaasa S , Loge JH.Quality of life in palliative care: principles and practice . Palliat Med2003; 17: 11-20 .
2.
Groenvold M , Petersen MA , Aaronson NK , Arraras JI , Blazeby JM , Bottomley A , et al.The development of the EORTC QLQ-C15-PAL: A shortened questionnaire for cancer patients in palliative care . Eur J Cancer2006; 42: 55-64 .
3.
Aaronson NK , Ahmedzai S , Bergman B , Bullinger M , Cull A , Duez NJ , et al.The European Organization for Research and Treatment of Cancer QLQ-C30: a quality-of-life instrument for use in international clinical trials in oncology . J Natl Cancer Inst1993; 85: 365-376 .
4.
Bjorner JB , Petersen MA , Groenvold M , Aaronson N , Ahlner-Elmqvist M , Arraras JI , et al.Use of item response theory to develop a shortened version of the EORTC QLQ-C30 emotional functioning scale . Qual Life Res2004; 13: 1683-1697 .
5.
Knobel H , Havard Loge J , Brenne E , Fayers P , Jensen Hjermstad M , Kaasa S.The validity of EORTC QLQ-C30 fatigue scale in advanced cancer patients and cancer survivors . Palliat Med2003; 17: 664-672 .
6.
Hearn J , Higginson IJ , Palliative Care Core Audit Project Advisory Group . Development and validation of a core outcome measure for palliative care: The Palliative Care Outcome Scale . Qual Health Care1999; 8: 219-227 .
7.
Cohen SR , Mount BM , Tomas JJ , Mount LF.Existential well-being is an important determinant of quality of life. Evidence from the McGill Quality of Life Questionnaire . Cancer1996; 77: 576-586 .
8.
Echteld MA , Deliens L , Ooms M , Ribbe M , Wal Gvd.Quality of life change and response shift in patients admitted to palliative care units in the Netherlands . Palliat Med2005; 19: 381-388 .
9.
Mystakidou K , Tsilika E , Kouloulias V , Parpa E , Katsouda E , Kouvaris J , et al.The ‘Palliative Care Quality of Life Instrument (PQLI)’ in terminal cancer patients . Health Qual Life Outcomes2004; 2: 8-8 .
