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Published online by Cambridge University Press: 26 April 2007
Emails received by the authors since the publication of “The Political Science 400: A 20-Year Update” (Masuoka, Grofman, and Feld 2007) called attention to mistakes in the citation counts of a number of scholars. Corrections to the citation counts are posted in an EXCEL file at www.socsci.uci.edu/∼bgrofman/. Once we have entered all corrections, an erratum will appear in a later issue of PS. Please address any corrections to that article to [email protected].