Ana Jiménez Zabala

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BACKGROUND Evidence on the association between colorectal cancer and exposure to disinfection by-products in drinking water is inconsistent. OBJECTIVES We assessed long-term exposure to trihalomethanes (THMs), the most prevalent group of chlorination by-products, to evaluate the association with colorectal cancer. METHODS A multicenter case-control(More)
BACKGROUND Ingested nitrate leads to endogenous formation of N-nitroso compounds that are breast carcinogens in animals, but human evidence is limited. OBJECTIVE We evaluated ingested nitrate as a risk factor for breast cancer (BC) in a multicase-control study. METHODS Hospital-based incident BC cases and population-based controls were recruited in(More)
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