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.
Park SJ, Tokura H.Park SJ, et al. Among authors: tokura h.Appl Human Sci. 1998 Nov;17(6):253-7. doi: 10.2114/jpa.17.253.Appl Human Sci. 1998.PMID: 10052223Free article.