Optimising the acceptability and feasibility of acceptance and commitment therapy for treatment-resistant generalised anxiety disorder in older adults - Lawrence, V; Kimona, K; Howard, R; Serfaty, M; Wetherell, J; Livingston, G; Wilkinson, P; Walters, K; Jones, R; Wuthrich, V; Gould, R (Age and Ageing, 2019)