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.
Beard JD, Thygerson SM, Olivares A, Tadje JE, Willis S, Johnston JD.Beard JD, et al. Among authors: johnston jd.Int J Environ Res Public Health. 2022 Sep 29;19(19):12431. doi: 10.3390/ijerph191912431.Int J Environ Res Public Health. 2022.PMID: 36231729Free PMC article.
Thygerson SM, Beard JD, House MJ, Smith RL, Burbidge HC, Andrus KN, Weber FX, Chartier R, Johnston JD.Thygerson SM, et al. Among authors: johnston jd.Int J Environ Res Public Health. 2019 Oct 25;16(21):4114. doi: 10.3390/ijerph16214114.Int J Environ Res Public Health. 2019.PMID: 31731477Free PMC article.
Johnston JD, Hawks ME, Johnston HB, Johnson LA, Beard JD.Johnston JD, et al. Among authors: johnston hb.Int J Environ Res Public Health. 2020 Aug 6;17(16):5681. doi: 10.3390/ijerph17165681.Int J Environ Res Public Health. 2020.PMID: 32781568Free PMC article.
Davis EA, Ou JY, Chausow C, Verdeja MA, Divver E, Johnston JD, Beard JD.Davis EA, et al. Among authors: johnston jd.Int J Environ Res Public Health. 2020 Aug 12;17(16):5839. doi: 10.3390/ijerph17165839.Int J Environ Res Public Health. 2020.PMID: 32806724Free PMC article.