Calprotectin and serum amyloid A for disease activity assessment in giant cell arteritis and polymyalgia rheumatica: results from a prospective single-centre cohort study. - Schmalzing M; Froehlich M; Strunz PP; Guggenberger KV; Gadeholt O; Werner RA; Labinsky H; Portegys J; Dittrich M; Bley TA; Mueller T; Gernert M (Rheumatology international, 2026)