Identifying biomarkers for diagnosis and disease activity monitoring in PSC-IBD and UC through proteomic profiling: A prospective, biomarker discovery single-center study protocol - Ondřej Fabián; Lukas Bajer; Peter Macinga; Jan Brezina; Mojmir Hlavaty; Pavel Drastich; Pavel Wohl; Karel Harant; Pavel Talacko; Eva Sticova; Andrea Vajsova; Alena Bohdanecka; et al. (PLoS ONE, 2026)