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Bandeira F, Lent R, Herculano-Houzel S.Bandeira F, et al.Proc Natl Acad Sci U S A. 2009 Aug 18;106(33):14108-13. doi: 10.1073/pnas.0804650106. Epub 2009 Aug 4.Proc Natl Acad Sci U S A. 2009.PMID: 19666520Free PMC article.
Herculano-Houzel S.Herculano-Houzel S.Proc Natl Acad Sci U S A. 2012 Jun 26;109 Suppl 1(Suppl 1):10661-8. doi: 10.1073/pnas.1201895109. Epub 2012 Jun 20.Proc Natl Acad Sci U S A. 2012.PMID: 22723358Free PMC article.Review.
Fonseca-Azevedo K, Herculano-Houzel S.Fonseca-Azevedo K, et al.Proc Natl Acad Sci U S A. 2012 Nov 6;109(45):18571-6. doi: 10.1073/pnas.1206390109. Epub 2012 Oct 22.Proc Natl Acad Sci U S A. 2012.PMID: 23090991Free PMC article.