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.
Cheung F.Cheung F.Int J Environ Res Public Health. 2022 Aug 27;19(17):10674. doi: 10.3390/ijerph191710674.Int J Environ Res Public Health. 2022.PMID: 36078390Free PMC article.
Vyas L, Cheung F, Ngo HY, Chou KL.Vyas L, et al. Among authors: cheung f.Int J Environ Res Public Health. 2022 Oct 1;19(19):12575. doi: 10.3390/ijerph191912575.Int J Environ Res Public Health. 2022.PMID: 36231875Free PMC article.
Mak WW, Cheung FM, Wong SY, Tang WK, Lau JT, Woo J, Lee DT.Mak WW, et al. Among authors: cheung fm.Hong Kong Med J. 2015 Apr;21 Suppl 2:9-12.Hong Kong Med J. 2015.PMID: 25852095Free article.Clinical Trial.No abstract available.
Mak WW, Cheung F, Woo J, Lee D, Li P, Chan KS, Tam CM.Mak WW, et al. Among authors: cheung f.Hong Kong Med J. 2009 Dec;15 Suppl 8:34-7.Hong Kong Med J. 2009.PMID: 20393211Free article.No abstract available.