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.
Heffner JL, Mull KE.Heffner JL, et al. Among authors: mull ke.J Med Internet Res. 2017 Aug 31;19(8):e305. doi: 10.2196/jmir.7953.J Med Internet Res. 2017.PMID: 28860108Free PMC article.
Bricker JB, Sridharan V, Zhu Y, Mull KE, Heffner JL, Watson NL, McClure JB, Di C.Bricker JB, et al. Among authors: mull ke.J Med Internet Res. 2018 Apr 20;20(4):e10143. doi: 10.2196/10143.J Med Internet Res. 2018.PMID: 29678799Free PMC article.
Watson NL, Mull KE, Heffner JL, McClure JB, Bricker JB.Watson NL, et al. Among authors: mull ke.J Med Internet Res. 2018 Aug 24;20(8):e10351. doi: 10.2196/10351.J Med Internet Res. 2018.PMID: 30143479Free PMC article.Clinical Trial.