1. Department of Clinical Biochemistry; Royal Bournemouth Hospital; Bournemouth
2. Department of Gastroenterology; Southampton Universities Hospital; Southampton
3. Department of Gastroenterology; Royal Bournemouth Hospital; Bournemouth
4. Department of Statistics; Salisbury Hospital; Salisbury
5. Diabetes and Endocrine Centre; Royal Bournemouth Hospital; Bournemouth
6. Centre of Postgraduate Medical Research and Education; Bournemouth University; Bournemouth UK