AUTHOR=Hu Yiming , Zhang Lan , Wu Lei , Zhu Yao , Wu Li , Li Chenye , Ruan Youyang , Hu Yunwei , Wang Feifei , Lin Zhirong , Jin Qifang TITLE=Lamellar keratoplasty using acellular porcine corneal stroma for the treatment of corneal ulcers JOURNAL=Frontiers in Medicine VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1534210 DOI=10.3389/fmed.2025.1534210 ISSN=2296-858X