International validation of the EORTC CAT Core: a new adaptive instrument for measuring core quality of life domains in cancer

Morten Aa Petersen, Neil K Aaronson, Thierry Conroy, Anna Costantini, Johannes M Giesinger, Eva Hammerlid, Bernhard Holzner, Colin D Johnson, Jacobien M Kieffer, Marieke van Leeuwen, Sandra Nolte, John K Ramage, Krzysztof A Tomaszewski, Annika Waldmann, Teresa Young, Paola Zotti, Mogens Groenvold