| 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. | |  | | 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. | |  | |  |  | | |  |  | Related Video | |  | | |  | | |  |  |  |  |  | | A quick-fix on the day's news delivered when you want it. Register Today |  | |  |  |  | | A daily digest of breaking business news, coverage of the US economy, major corporate news and the financial markets. Register Today |  | |  | | » » MORE NEWSLETTERS |  | |