Attar, R. Z., Movahedi, M., Cesta, A., Li, X., Sabido-Sauri, R., Tsechelidis, O. B., Lau, A., Chow, A., Thorne, C., Haaland, D., Soucy, E., Bombardier, C., Aydin, S. Z. (2026). 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. PLoS ONE. https://doi.org/10.1371/journal.pone.0352264