An app-based nonpharmacological intervention improves patient-reported disease activity, functionality, and quality of life in patients with axial spondyloarthritis: a randomised controlled trial. - Strunz PP; Froehlich M; Heusinger T; le Maire M; Fleischer A; Luetkens KS; Possler P; Gernert M; Labinsky H; Gadeholt O; Leppich R; Schmieder A; et al. (Annals of the rheumatic diseases, 2026)