AUTHOR=Zhang Zhan , Yang Xiongjie , Jiang Chenming , Lu Linjun , Li Xiaoyue , Rong Xiaoyu , Huang Ziqi TITLE=Improving equity through barrier-free transportation: an evaluation of Shanghai metro stations JOURNAL=Frontiers in Public Health VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2024.1463824 DOI=10.3389/fpubh.2024.1463824 ISSN=2296-2565