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. Author manuscript; available in PMC: 2015 Aug 1.

Published in final edited form as: Cancer Prev Res (Phila). 2014 Jun 9;7(8):813–823. doi: 10.1158/1940-6207.CAPR-14-0103

Geometric means for biomarker levels on days 0, 1, 7, 14, 28, 42, 56, 70, and 84 of the intervention. A. Daily average levels for PM₁₀ in Shanghai (black) and Qidong (red) during the study period. B. Urinary benzene mercapturic acid levels. C. Urinary acrolein and crotonaldehyde mercapturic acid levels. () Broccoli sprout beverage arm; (•), placebo beverage arm. The geometric means for benzene appropriately accounted for left-censoring using the flexible PROC NLMIXED command in SAS 9.2.

Inline graphic — Geometric means for biomarker levels on days 0, 1, 7, 14, 28, 42, 56, 70, and 84 of the intervention. A. Daily average levels for PM₁₀ in Shanghai (black) and Qidong (red) during the study period. B. Urinary benzene mercapturic acid levels. C. Urinary acrolein and crotonaldehyde mercapturic acid levels. () Broccoli sprout beverage arm; (•), placebo beverage arm. The geometric means for benzene appropriately accounted for left-censoring using the flexible PROC NLMIXED command in SAS 9.2.