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pro vyhledávání: '"Katherine W Ungar"'
Autor:
Page D. Dobbs, Katherine A. White, Michael Ct Kelly, Ginny Chadwick, Marshall K. Cheney, Katherine W Ungar, Chris M. Dunlap
Publikováno v:
Tobacco Control
ObjectivePolicies raising the minimum legal sales age (MLSA) of tobacco products to 21 are commonly referred to as tobacco 21. This study sought to identify components of tobacco 21 policies and develop an instrument to examine policy language within