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2. The European Organization for Research and Treatment of Cancer (EORTC) modular approach to quality of life assessment in oncology;Aaronson,1996
3. EORTC QLQ-C30 Scoring Manual;Fayers,2001
4. Fayers PM, Weeden S, Curran D, on behalf of the EORTC Quality of Life Study Group. EORTC QLQ-C30 Reference Values. Brussels, EORTC, 1998 (the reference values are also available on CD-ROM from EORTC QLU).
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