1 Oxford University Clinical Academic Graduate School, University of Oxford, Oxford, UK. Electronic address: rahulshah2@doctors.org.uk.
2 Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK; Acute General Medicine, Oxford University Hospitals NHS Foundation Trust, Oxford, UK.
3 Department of Clinical Biochemistry, Oxford University Hospitals NHS Foundation Trust, Oxford, UK.
4 Acute General Medicine, Oxford University Hospitals NHS Foundation Trust, Oxford, UK.
5 Acute General Medicine, Oxford University Hospitals NHS Foundation Trust, Oxford, UK; Oxford Centre for Clinical Therapeutics (OCCT), Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK. Electronic address: james.fullerton@ndorms.ox.ac.uk.