@article{65378b70ace911debc73000ea68e967b,
title = "Differential item functioning (DIF) in the EORTC QLQ-C30: a comparison of baseline, on-treatment and off-treatment data",
keywords = "Faculty of Health and Medical Sciences, cancer, cancer, Differential item functioning, Quality of life",
author = "Scott, {Neil W.} and Fayers, {Peter M.} and Aaronson, {Neil K.} and Andrew Bottomley and {de Graeff}, Alexander and Mogens Gr{\o}nvold and Chad Gundy and Michael Koller and Sprangers, {Mirjam A.G.}",
year = "2009",
language = "English",
volume = "18",
pages = "381--388",
journal = "Quality of Life Research",
issn = "0962-9343",
publisher = "Springer",
}
