1. School of Health and Related Research, The University of Sheffield, Sheffield, UK
2. Centre for Behavioural Science and Applied Psychology, Sheffield Hallam University, Sheffield, UK
3. Wolfson Adult Cystic Fibrosis Centre, Nottingham University Hospitals NHS Trust, City Hospital, Nottingham, UK
4. Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Northern General Hospital, Sheffield, UK
5. Department of Computer Science, The University of Sheffield, Sheffield, UK