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Health

Ex-smokers, light smokers not exempt from lung damage

People who smoke fewer than five cigarettes a day cause long-term damage to their lungs, according to a new study led by researchers at Columbia University Vagelos College of Physicians and Surgeons.

Medical research

In cystic fibrosis, lungs feed deadly bacteria

In cystic fibrosis, Pseudomonas aeruginosa is a much-feared pathogen. The bacterium easily colonizes the lungs of people with cystic fibrosis, leading to chronic infections that are almost impossible to eradicate and are ...

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