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.
John KA, Cogswell ME, Zhao L, Tong X, Odom EC, Ayala C, Merritt R.John KA, et al. Among authors: tong x.Am J Health Promot. 2018 Jul;32(6):1357-1364. doi: 10.1177/0890117116679163. Epub 2016 Dec 28.Am J Health Promot. 2018.PMID: 29972073Free PMC article.
Tong X, King SMC, Asaithambi G, Odom E, Yang Q, Yin X, Merritt RK.Tong X, et al.Prev Chronic Dis. 2021 Aug 19;18:E82. doi: 10.5888/pcd18.210130.Prev Chronic Dis. 2021.PMID: 34410906Free PMC article.