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.
Hsu HM, Hou YH, Chang IC, Yen DC.Hsu HM, et al. Among authors: chang ic.J Med Syst. 2009 Apr;33(2):133-9. doi: 10.1007/s10916-008-9173-5.J Med Syst. 2009.PMID: 19397098
Chang IC, Lin PJ, Chen TH, Chang CH.Chang IC, et al. Among authors: chang ch.J Med Internet Res. 2020 Aug 12;22(8):e18078. doi: 10.2196/18078.J Med Internet Res. 2020.PMID: 32784174Free PMC article.
Lin IC, Chien YM, Chang IC.Lin IC, et al. Among authors: chang ic.Stud Health Technol Inform. 2006;122:220-4.Stud Health Technol Inform. 2006.PMID: 17102252