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.
Stefánsson E, Machemer R, de Juan E Jr, McCuen BW 2nd, Peterson J.Stefánsson E, et al.Am J Ophthalmol. 1992 Jan 15;113(1):36-8. doi: 10.1016/s0002-9394(14)75750-2.Am J Ophthalmol. 1992.PMID: 1728144
Stefánsson E, Bek T, Porta M, Larsen N, Kristinsson JK, Agardh E.Stefánsson E, et al.Acta Ophthalmol Scand. 2000 Aug;78(4):374-85. doi: 10.1034/j.1600-0420.2000.078004374.x.Acta Ophthalmol Scand. 2000.PMID: 10990036Free article.Review.