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.
Zhang Y, ElGhaziri M, Nasuti S, Duffy JF.Zhang Y, et al. Among authors: duffy jf.Workplace Health Saf. 2020 Jul;68(7):346-354. doi: 10.1177/2165079919897285. Epub 2020 Jan 21.Workplace Health Saf. 2020.PMID: 31959087Free PMC article.
Zhang Y, Duffy JF, De Castillero ER.Zhang Y, et al. Among authors: duffy jf.J Psychiatr Ment Health Nurs. 2017 Oct;24(8):620-628. doi: 10.1111/jpm.12409. Epub 2017 Aug 3.J Psychiatr Ment Health Nurs. 2017.PMID: 28635074Free PMC article.
Zhang Y, Duffy JF, de Castillero ER, Wang K.Zhang Y, et al. Among authors: duffy jf.Workplace Health Saf. 2018 Jan;66(1):8-15. doi: 10.1177/2165079917704671. Epub 2017 Jul 21.Workplace Health Saf. 2018.PMID: 28732185Free PMC article.
Lammers-van der Holst HM, Wyatt JK, Horowitz TS, Wise JC, Wang W, Ronda JM, Duffy JF, Czeisler CA.Lammers-van der Holst HM, et al. Among authors: duffy jf.Scand J Work Environ Health. 2021 Jul 1;47(5):356-366. doi: 10.5271/sjweh.3953. Epub 2021 Mar 28.Scand J Work Environ Health. 2021.PMID: 33774680Free PMC article.Clinical Trial.