Establishing anchor-based minimally important differences (MID) with the EORTC quality-of-life measures: a meta-analysis protocol

Zebedee Jammbe Musoro, Jean-Francois Hamel, Divine Ewane Ediebah, Kim Cocks, Madeleine T King, Mogens Grønvold, Mirjam A G Sprangers, Yvonne Brandberg, Galina Velikova, John Maringwa, Hans-Henning Flechtner, Andrew Bottomley, Corneel Coens