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.
Ma DH, Wang SF, Su WY, Tsai RJ.Ma DH, et al. Among authors: tsai rj.Cornea. 2002 Apr;21(3):275-83. doi: 10.1097/00003226-200204000-00008.Cornea. 2002.PMID: 11917176Clinical Trial.
Chen JH, Ma DH, Tsai RJ.Chen JH, et al. Among authors: tsai rj.Chang Gung Med J. 2002 Mar;25(3):144-52.Chang Gung Med J. 2002.PMID: 12022734Free article.
Ma DH, Tsai RJ, Chu WK, Kao CH, Chen JK.Ma DH, et al. Among authors: tsai rj.Invest Ophthalmol Vis Sci. 1999 Jul;40(8):1822-8.Invest Ophthalmol Vis Sci. 1999.PMID: 10393055