1 Kate Absolom, PhD, Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, United Kingdom, Leeds Institute of Health Sciences, University of Leeds, Leeds, United Kingdom; Lorraine Warrington, PhD, Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, United Kingdom; Eleanor Hudson, MSc, Leeds Institute of Clinical Trials Research, University of Leeds, Leeds, United Kingdom; Jenny Hewison, PhD, MSc, Leeds Institute of Health Sciences, University of Leeds, Leeds, United Kingdom; Patricia Holch, PhD, Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, United Kingdom, Psychology Group, School of Social Sciences, Faculty of Health and Social Sciences, Leeds Beckett University, Leeds, United Kingdom; Bryony Dawkins, MSc, Leeds Institute of Health Sciences, University of Leeds, Leeds, United Kingdom; Claire Hulme, MA, PhD, Leeds Institute of Health Sciences, University of Leeds, Leeds, United Kingdom, University of Exeter, St Luke's Campus, Exeter, United Kingdom; Julia Brown, MSc, Leeds Institute of Clinical Trials Research, University of Leeds, Leeds, United Kingdom; and Galina Velikova, MD, PhD, Leeds Institute of Medical Research at St James's, University of Leeds, St James's University Hospital, Leeds, United Kingdom, Leeds Cancer Centre, Leeds Teaching Hospitals NHS Trust, St James's University Hospital, Leeds, United Kingdom.