AUTHOR=Zheng Yue-liang , Su Gong-zhang , Li Yan-lin , Du Tong , Zhao Xue-lu , Wang Cong-cong , Liu Ying , Liu Bin , Duan Rui-sheng , Li Xiao-li TITLE=Myasthenia gravis with double-seropositive acetylcholine receptor and low-density lipoprotein receptor-related protein 4 antibodies combined with muscle atrophy: a case report and literature review JOURNAL=Frontiers in Immunology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2025.1545579 DOI=10.3389/fimmu.2025.1545579 ISSN=1664-3224