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. Author manuscript; available in PMC: 2014 Aug 20.
Published in final edited form as: Cancer Epidemiol Biomarkers Prev. 2008 Jun;17(6):1411–1417. doi: 10.1158/1055-9965.EPI-07-2693

Fig. 1.

Fig. 1

Structures of curcumin (I), curcumin glucuronide (II) and curcumin sulfate (III).