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Karl Evers-Hillstrom, with contributions from researchers Doug Weber, Anna Massoglia, Andrew Mayersohn, Grace Haley, Sarah Bryner and Alex Baumgart
Bruce F. Freed, Dan Carroll and Karl J. Sandstrom
Theo Francis, The Wall Street Journal
Op-Ed by Bruce Freed and Eleanor Bloxham
Bruce F. Freed and Dan Carroll (CPA), and William S. Laufer (University of Pennsylvania)
Christopher Babbitt, David Berman, and Brendan McGuire
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