1965, 1966, 1970, 1974-2015, 2017. Centers for Disease Control and Prevention (CDC). Office on Smoking and Health (OSH). Survey Questions (Tobacco Use). The QIT is a compilation of more than 7,000 historical tobacco-related survey questions from various state, national and international surveys.

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Last updated: 2023-08-22 12:44:04+00:00