1. Institute of Metabolism and Systems Research; University of Birmingham; Birmingham UK
2. Centre for Endocrinology, Diabetes and Metabolism; Birmingham Health Partners; Birmingham UK
3. Department of Endocrinology; University Hospitals Birmingham; Birmingham UK
4. School of Health and Population Sciences; University of Birmingham; Birmingham UK
5. Division of Endocrinology; Beaumont Hospital and RCSI Medical School; Dublin 9 Ireland
6. Department of Neurosurgery; University Hospitals Birmingham; Birmingham UK