AUTHOR=Zhou Yongjian , Yang Zecheng , Zhang Shixi , Zhang Donghua , Luo Hong , Zhu Di , Li Guangming , Yang Mengzhao , Hu Xiaobo , Qian Guowu , Li Guotao , Wang Ling , Li Silin , Yu Zujiang , Ren Zhigang TITLE=A multicenter, real-world cohort study: effectiveness and safety of Azvudine in hospitalized COVID-19 patients with pre-existing diabetes JOURNAL=Frontiers in Endocrinology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2025.1467303 DOI=10.3389/fendo.2025.1467303 ISSN=1664-2392