1. Wolfson Adult Cystic Fibrosis Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
2. Staffordshire Centre for Psychological Research, School of Health, Science and Wellbeing, Staffordshire University, Stoke-on-Trent, UK
3. Institute of Psychology, Business and Human Sciences, University of Chichester, Chichester, UK
4. Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK