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.
Fan JK, Tong DK, Ho DW, Luk J, Law WL, Law S.Fan JK, et al. Among authors: tong dk.JSLS. 2009 Jan-Mar;13(1):9-13.JSLS. 2009.PMID: 19366533Free PMC article.
Yam PP, Tong DK, Law S.Yam PP, et al. Among authors: tong dk.Hong Kong Med J. 2012 Apr;18(2):166.Hong Kong Med J. 2012.PMID: 22477744Free article.No abstract available.
Teoh AY, Chiu PW, Chan SY, Cheung FK, Chu KM, Kao SS, Lai TW, Lau CW, Law SY, Leung CT, Leung WK, Tong DK, Tsang SH.Teoh AY, et al. Among authors: tong dk.Hong Kong Med J. 2015 Jun;21(3):224-31. doi: 10.12809/hkmj144380. Epub 2015 May 22.Hong Kong Med J. 2015.PMID: 25999031Free article.