AdvertisementDoctor Who Wrote 1980 Letter On Painkillers Regrets That It Fed The Opioid CrisisJune 16, 2017Taylor HaneyAndrea HsufacebookEmailA 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. (UIG via Getty Images)
