Improving outcomes of patients living with psoriatic arthritis: The Observational Best Practices Research Initiative (OBRI-PsA) registry: Rationale, Methodology and Preliminary Data of 18 Months Follow-up. - Attar, Rahaf Zyad; Movahedi, Mohammad; Cesta, Angela; Li, Xiuying; Sabido-Sauri, Ricardo; Tsechelidis, Ozun Bayindir; Lau, Arthur; Chow, Andrew; Thorne, Carter; Haaland, Derek; Soucy, Elaine; Bombardier, Claire; et al. (PLoS ONE, 2026)