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.
Lee HA, Kung HH, Lee YJ, Chao JC, Udayasankaran JG, Fan HC, Ng KK, Chang YK, Kijsanayotin B, Marcelo AB, Hsu CY.Lee HA, et al. Among authors: chang yk.JMIR Med Inform. 2020 Dec 22;8(12):e20567. doi: 10.2196/20567.JMIR Med Inform. 2020.PMID: 33320826Free PMC article.
Tseng SY, Lai CL, Ko CP, Chang YK, Fan HC, Wang CH.Tseng SY, et al. Among authors: chang yk.Int J Environ Res Public Health. 2023 Jan 16;20(2):1650. doi: 10.3390/ijerph20021650.Int J Environ Res Public Health. 2023.PMID: 36674404Free PMC article.Clinical Trial.