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Nordihydroguaiaretic acid is an antioxidant used experimentally to induce cystic renal disease in rats. It may be extracted from the leaves of the creosote bush, which are consumed as chaparral tea in the southwestern United States. We report a case of cystic renal disease and cystic adenocarcinoma of the kidney associated with a history of protracted consumption of chaparral tea.
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Smith et al. (1994) studied this question.
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