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Zitting KM, Lammers-van der Holst HM, Yuan RK, Wang W, Quan SF, Duffy JF.Zitting KM, et al. Among authors: lammers van der holst hm.J Clin Sleep Med. 2021 Feb 1;17(2):177-184. doi: 10.5664/jcsm.8810.J Clin Sleep Med. 2021.PMID: 32975191Free 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.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.
Zhang Y, Murphy J, Lammers-van der Holst HM, Barger LK, Lai YJ, Duffy JF.Zhang Y, et al. Among authors: lammers van der holst hm.Res Nurs Health. 2023 Oct;46(5):462-484. doi: 10.1002/nur.22337. Epub 2023 Sep 14.Res Nurs Health. 2023.PMID: 37710916Free PMC article.