1. Rheumatic Diseases Unit; Centre for Genomic and Experimental Medicine; MRC Institute of Genetics and Molecular Medicine; University of Edinburgh; Edinburgh UK
2. MRC Human Genetics Unit and Centre for Genomic and Experimental Medicine; MRC Institute of Genetics and Molecular Medicine; University of Edinburgh; Edinburgh UK
3. Academic Unit of Bone Metabolism; Centre for Biomedical Research; Northern General Hospital; Sheffield UK
4. Department of Rheumatology; Derby Hospitals NHS Foundation Trust; Derby UK
5. Musculoskeletal Research Unit; School of Clinical Sciences; University of Bristol; Bristol UK