IMPlementation of An online Relatives' Toolkit for psychosis or bipolar (IMPART study): iterative multiple case study to identify key factors impacting on staff uptake and use. - Lobban, Fiona; Appelbe, Duncan; Appleton, Victoria; Billsborough, Julie; Fisher, Naomi Ruth; Foster, Sheena; Gill, Bethany; Glentworth, David; Harrop, Chris; Johnson, Sonia; Jones, Steven H.; Kovacs, Tibor Zoltan; et al. (BMC Health Services Research, 2020)