1. Institute of Cardiovascular Research, Royal Holloway, University of London, Egham, Surrey, UK
2. Department of Respiratory Medicine, Ashford and St Peter’s Hospitals NHS Foundation Trust, Guildford Road, Chertsey, Surrey, UK
3. Department of Cardiology, Ashford and St Peter’s Hospitals NHS Foundation Trust, Guildford Road, Chertsey, Surrey, UK
4. School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK
5. Department of Endocrinology, Ashford and St Peter’s Hospitals NHS Foundation Trust, Guildford Road, Chertsey, Surrey, UK