www.niehs.nih.gov
Summarize this content to 100 words: <img width="100" src="https://www.niehs.nih.gov//news/factor/sites/niehs-factor/files/styles/thumbnail/public/2023/05/awards-recognition/doug-bell-retires-thumb.jpg?itok=Rt9dt0P0" /><br /><p>Douglas Bell, Ph.D., spent his career studying the effects of carcinogens like smoke, but the experimentalist has new plans for retirement.</p>
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