Minimally important differences of EORTC QLQ-C30 scales in patients with lung cancer or malignant pleural mesothelioma – Interpretation guidance derived from two randomized EORTC trials

Michael Koller, Jammbe Musoro, Krzysztof A. Tomaszewski, Corneel Coens, Madeleine King, Mirjam A. G. Sprangers, Mogens Grøenvold, Kim Cocks, Galina Velikova, Hans‐Henning Flechtner, Andrew Bottomley