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.
Hui DS, Chan JK, Ko FW, Choy DK, Li TS, Chan AT, Wong KK, Lai CK.Hui DS, et al. Among authors: chan jk, chan at.Intern Med J. 2002 Apr;32(4):149-57. doi: 10.1046/j.1444-0903.2001.00196.x.Intern Med J. 2002.PMID: 11951926
Chan A, Chan CH, Ng DK.Chan A, et al.Pediatr Pulmonol. 2012 Aug;47(8):795-800. doi: 10.1002/ppul.22505. Epub 2012 Jan 30.Pediatr Pulmonol. 2012.PMID: 22290785
Mak WW, Chan AT, Cheung EY, Lin CL, Ngai KC.Mak WW, et al. Among authors: chan at.J Med Internet Res. 2015 Jan 19;17(1):e8. doi: 10.2196/jmir.3746.J Med Internet Res. 2015.PMID: 25599904Free PMC article.Clinical Trial.
Mak WWS, Wong CCY, Chan ATY, Lau JTF.Mak WWS, et al.Hong Kong Med J. 2019 Feb;25 Suppl 2(1):15-17.Hong Kong Med J. 2019.PMID: 30674702Free article.Clinical Trial.No abstract available.
Mak WW, Chio FH, Chan AT, Lui WW, Wu EK.Mak WW, et al. Among authors: chan at.J Med Internet Res. 2017 Mar 22;19(3):e84. doi: 10.2196/jmir.6737.J Med Internet Res. 2017.PMID: 28330831Free PMC article.Clinical Trial.
Mak WW, Tong AC, Yip SY, Lui WW, Chio FH, Chan AT, Wong CC.Mak WW, et al. Among authors: chan at.JMIR Ment Health. 2018 Oct 11;5(4):e60. doi: 10.2196/mental.8597.JMIR Ment Health. 2018.PMID: 30309837Free PMC article.
Wang Y, Zhou Z, Broder JC, Woods RL, Orchard SG, Wolfe R, Ernst EJ, Ryan J, Ernst ME, Chan AT.Wang Y, et al. Among authors: chan at.Neurology. 2025 Jan 14;104(1):e210129. doi: 10.1212/WNL.0000000000210129. Epub 2024 Dec 18.Neurology. 2025.PMID: 39693592Clinical Trial.