and according to a wall street journal article the joint commission published a guide sponsored by purdue pharma on pain management. and with those exaggerated concerns and those related to the use of oxycontin and said there was no evidence of addiction. and pain so what i would like to know for mr. landau, did purdue pharma find that research by the joint commission? >> with respect, i don't know. i said in an earlier testimony before becoming ceo i was entrenched in research and development and that is an area outside of my area of responsibility i get back to you certainly after the hearing with that information. >> mr. sackler did you find any of the research from the joint commission? >> i simply don't know. >> the answer to the question is yes. >> your company mounted an aggressive marketing campaign that the fda warned that was misleading. are you aware of that? >> my recollection is that the fda warning letter in 2003 was related to a single ad in a journal article. . . . . but yod i think in a dishonest way pushed this drug on doctors and it ramped up after the changes in the affordabl