"Possibly carcinogenic" is a specific category that WHO USES to characterize medical risk, and also has been attached to night-shift work, engine exhaust and coffee.
2
英国科学家最近发现，夜班工作不会增加乳腺癌的风险，澄清了之前关于夜班对女性影响的研究。
British scientists have recently found that working night shifts is unlikely to increase the risk of breast cancer, clarifying a previous study on the effect of night shifts on women.
3
一项最新研究发现：值夜班或者有一定体力劳动的职业女性可能存在低生育风险。
Women who work at night or follow irregular shift patterns could be in danger of suffering from low fertility, a new study has indicated.
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