1. Department of Endocrinology, University Hospital South Manchester, Southmoor Road, Wythenshawe, Manchester M23 9LT, UK
2. Department of Cardiology, University Hospital South Manchester, Southmoor Road, Wythenshawe, Manchester M23 9LT, UK
3. Department of Microbiology, University Hospital South Manchester, Southmoor Road, Wythenshawe, Manchester M23 9LT, UK