P261 Early and accurate diagnosis of patients with axial spondyloarthritis using machine learning: a predictive analysis from electronic health records in the United Kingdom - Sengupta, Raj; Narasimham, Shruti; Mato, Borja S; Meglic, Matic; Perella, Chiara; Pamies, Paula; Emery, Paul (Rheumatology (Oxford, England), 2022)