Cigarette filters may increase lung cancer risk |  | Cigarette filters, introduced decades ago to reduce the amount of tar smokers inhale, also alter other properties of smoke and smoking in a way that raises the risk of lung cancer, researchers say. |
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AstraZeneca asthma shot hits goal but diabetes drug lags rival |  | LONDON (Reuters) - AstraZeneca's experimental injection for severe asthma cut substantially the need for patients to take problematic oral steroid drugs in a late-stage study, boosting hopes for a medicine that is expected to reach the market later this year. |
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