five-sentence letter to the editor published by two boston researchers, her shell gymnastic and jane porter, in 1980. >> the letter was about 100 words to the new england journal of medicine, and essentially it was a study of a small group of patients in a hospital setting, which suggested that if you were given opioids for the treatment of pain, there was a less than 1% chance of addiction. >> but the letter was never intended as a study. it applied only to patients in hospitals. nevertheless, some took the letter and ran with it. >> once that interpretation had been given, it then gets repeated without anybody really going back and looking at the original claim in the letter. and it gets cited time and time again in paper after paper. less than 100 words becomes the whole basis for claiming that opioids are safe for long-term treatment of chronic pain. >> purdue used the claim in its own public relations materials. >> the rate of addiction amongst pain patients who are treated by doctors is much less than 1%. they don't wear out. they go on working. they do not have serious medical side e