We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleFundamental problem with opioid trials for chronic pain.AuthorsMehta, TusharPublicationCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2007, Vol 176, Issue 9, p1307ISSN1488-2329Publication typeCommentaryDOI10.1503/cmaj.1060140