SUpporting well-being through PEeR-Befriending (SUPERB) trial: an exploration of fidelity in peer-befriending for people with aphasia. (26th July 2018) - Behn, Nicholas; Hilari, Katerina; Marshall, Jane; Simpson, Alan; Northcott, Sarah; Thomas, Shirley; Flood, Chris; Goldsmith, Kimberley; McVicker, Sally