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PLOS ONE: Metabolic syndrome and Chronic Obstructive Pulmonary Disease (COPD): The interplay among smoking, insulin resistance and vitamin D
![Research in the news: Vitamin A receptor may help protect lungs from smoking, viral infections | YaleNews Research in the news: Vitamin A receptor may help protect lungs from smoking, viral infections | YaleNews](https://news.yale.edu/sites/default/files/styles/horizontal_image/public/d6_files/Smoking%20Lungs.jpg?itok=JgjNGR16)