Increased risk of urinary tract cancer in ESRD patients associated with usage of Chinese herbal products suspected of containing aristolochic acid.

PLoS One · 2014 · PMC4149424 · PMID 25170766

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did not reach statistical significanceno p-value reported

Fangchi and Xi-Xin both showed increased hazard ratios at higher doses, but these results did not reach statistical significance after adjustment for risk factors, likely due to the small number of case subjects.

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