08/06/12 – Draft Updated - Home | Colorado.gov

At each of these visits, you will complete some of the same tests and questionnaires that you completed at the start of the study. At the 1 year visit, if you are not using products with nicotine, we will draw about 1 tablespoonful of blood from a vein and measure the cotinine (nicotine) in your blood. 2. ................
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