Process evaluation of a randomised pilot trial of home-based rehabilitation compared to usual care in patients with heart failure with preserved ejection fraction and their caregiv... oleh Karen Smith, Chim Lang, Jennifer Wingham, Julia Frost, Colin Greaves, Charles Abraham, Fiona C. Warren, Joanne Coyle, Kate Jolly, Jackie Miles, Kevin Paul, Patrick J. Doherty, Russell Davies, Hasnain Dalal, Rod S. Taylor, on behalf of the REACH-HF research group