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Using Search Query Surveillance to Monitor Tax Avoidance and Smoking Cessation following the United States' 2009 “SCHIP” Cigarette Tax Increase
Ayers JW,
Ribisl K,
Brownstein JS
(2011)
Using Search Query Surveillance to Monitor Tax Avoidance and Smoking Cessation following the United States' 2009 “SCHIP” Cigarette Tax Increase.
PLOS ONE 6(3): e16777.
https://doi.org/10.1371/journal.pone.0016777