A 1980 letter published in the New England Journal of Medicine was later widely cited as evidence that long-term use of opioid painkillers such as oxycodone was safe, even though the letter did not back up that claim. Education Images/UIG via Getty Images hide caption

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Education Images/UIG via Getty Images

Doctor Who Wrote 1980 Letter On Painkillers Regrets That It Fed The Opioid Crisis

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Women smoke in New York City's Times Square. Spencer Platt/Getty Images hide caption

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Female Smokers Face Greater Risk Than Previously Thought

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