1. Centre for Endocrinology, Diabetes, and Metabolism; School of Clinical and Experimental Medicine; University of Birmingham; Birmingham UK
2. Department of Pediatric Endocrinology; Amalia Children's Hospital; Radboud University Medical Center; Nijmegen The Netherlands
3. Division of Endocrinology; Department of Internal Medicine; Bulent Ecevıt University; Zonguldak Turkey
4. Department of Endocrinology; Oxford Centre for Diabetes, Endocrinology and Metabolism; Churchill Hospital; Oxford UK
5. School of Medicine; Ninewells Hospital and Medical School; University of Dundee; Dundee UK
6. Endocrine Sciences Research Group; University of Manchester; Manchester UK