1. 1Department of Endocrinology, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
2. 2Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
3. 3Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
4. 4Centre for Bone Quality, Leiden University Medical Centre, Leiden, The Netherlands
5. 5Section of Specialized Endocrinology, Oslo University Hospital, Oslo, Norway
6. 6Faculty of Medicine, University of Oslo, Oslo, Norway
7. 7Departments of Orthopaedics and Medicine, UConn Health, Farmington, Connecticut, USA
8. 8Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark