1. Department of Respiratory Medicine, King’s College Hospital, London, UK
2. Centre for Human and Applied Physiological Sciences, School of Basic and Medical Biosciences, Faculty of Life Sciences and Medicine, King’s College London, London, UK
3. Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
4. Mind & Body Programme, King’s Health Partners, London, UK