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Posner MI, Rothbart MK.Posner MI, et al.Philos Trans R Soc Lond B Biol Sci. 2018 Apr 19;373(1744):20170254. doi: 10.1098/rstb.2017.0254.Philos Trans R Soc Lond B Biol Sci. 2018.PMID: 29483356Free PMC article.
Posner MI.Posner MI.Proc Natl Acad Sci U S A. 1994 Aug 2;91(16):7398-403. doi: 10.1073/pnas.91.16.7398.Proc Natl Acad Sci U S A. 1994.PMID: 8052596Free PMC article.Review.
Posner MI, Rothbart MK.Posner MI, et al.Philos Trans R Soc Lond B Biol Sci. 1998 Nov 29;353(1377):1915-27. doi: 10.1098/rstb.1998.0344.Philos Trans R Soc Lond B Biol Sci. 1998.PMID: 9854264Free PMC article.Review.