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.
Barraza JA, Zak PJ.Barraza JA, et al. Among authors: zak pj.Ann N Y Acad Sci. 2009 Jun;1167:182-9. doi: 10.1111/j.1749-6632.2009.04504.x.Ann N Y Acad Sci. 2009.PMID: 19580564
Barraza JA, Hu X, Terris ET, Wang C, Zak PJ.Barraza JA, et al. Among authors: zak pj.PLoS One. 2021 Nov 30;16(11):e0260589. doi: 10.1371/journal.pone.0260589. eCollection 2021.PLoS One. 2021.PMID: 34847200Free PMC article.Clinical Trial.