AUTHOR=Han Jinming , Carnero Contentti Edgar , Liu Ju TITLE=Editorial: Real-world study of multiple sclerosis and related diseases in developing countries JOURNAL=Frontiers in Neurology VOLUME=14 YEAR=2023 URL=https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2023.1336598 DOI=10.3389/fneur.2023.1336598 ISSN=1664-2295