By Dobkin Carlos   Nicosia Nancy   in The American Economic Review

ISSN:0002-8282|99|1|324-349

American Economic Association‎(2009)‎

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By Datar Ashlesha   Nicosia Nancy   Shier Victoria   in American Journal of Epidemiology

ISSN:1476-6256|177|10|1065-1073

Oxford University Press‎(2013)‎

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