An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Li Y, Zhao Y, Sang S, Leung T.Li Y, et al. Among authors: leung t.J Ophthalmol. 2019 Apr 17;2019:2746735. doi: 10.1155/2019/2746735. eCollection 2019.J Ophthalmol. 2019.PMID: 31143470Free PMC article.
Dong W, Han X, Bao C, Tai S, Bai Y, Xu L, Yang J, Leung T, Ao W, Dong W.Dong W, et al. Among authors: leung t.Evid Based Complement Alternat Med. 2021 Apr 26;2021:5543259. doi: 10.1155/2021/5543259. eCollection 2021.Evid Based Complement Alternat Med. 2021.PMID: 33995546Free PMC article.