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 D, Hodges RR, Bispo P, Gilmore MS, Gregory-Ksander M, Dartt DA.Li D, et al. Among authors: dartt da.BMJ Open Ophthalmol. 2017 Nov 16;2(1):e000101. doi: 10.1136/bmjophth-2017-000101. eCollection 2017.BMJ Open Ophthalmol. 2017.PMID: 29354725Free PMC article.