P4‐276: Health services development research with people with dementia: Key features, factors, and learning from a multi‐site, mixed methods study. (1st July 2015) - Bowen, Michael; Pepe, Rosa; Buchanan, Sarah; Edgar, David; Hall, Lesley; Hancock, Beverley; Iliffe, Steve; Maskell, Susan; Shah, Rakhee; Pickett, James