Cadmium, used in batteries, coating and plating, plastic and synthetic products and alloy. Ethylene oxide, used to make other chemicals and to sterilize medical devices. It pointed out that benefits can outweigh the risks. Tamoxifen, made under the name Nolvadex by AstraZeneca, can increase the risk of ovarian cancer. But ovarian cancer is so rare that doctors say the higher risk is small.
Tamoxifen is the first drug to be shown to prevent breast cancer in some women at high risk.
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