AUTHOR=Brieva Luis , Calles Carmen , Landete Lamberto , Oreja-Guevara Celia 

TITLE=Current challenges in secondary progressive multiple sclerosis: diagnosis, activity detection and treatment

JOURNAL=Frontiers in Immunology

VOLUME=Volume 16 - 2025

YEAR=2025

URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2025.1543649

DOI=10.3389/fimmu.2025.1543649

ISSN=1664-3224