“…Patient participation has been discussed (Cahill, 1998;Pritchard, 1981) and advocated (Brownlea, 1987;Haidet, Kroll, & Sharf, 2006;Mansell, Poses, Kazis, & Duefield, 2000;Sahlsten, Larsson, Sjöström, Lindencrona, & Plos, 2007) To capture all relevant publications, additional searches were conducted using the authors" names or the instrument titles. Furthermore, reference lists in the retrieved articles were scanned for relevant publications.…”