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.
Thai AC, Lui KF, Low EG, Ng WY, Kek LP.Thai AC, et al. Among authors: ng wy.Ann Acad Med Singap. 1991 Nov;20(6):732-5.Ann Acad Med Singap. 1991.PMID: 1803958
Wang KW, Sum CF, Tan KT, Ng WY, Cheah JS.Wang KW, et al. Among authors: ng wy.Ann Acad Med Singap. 1990 Jul;19(4):439-42.Ann Acad Med Singap. 1990.PMID: 2221798