Abuse and Diversion of Immediate Release Opioid Analgesics as Compared to Extended Release Formulations in the United States. oleh Janetta L Iwanicki, S Geoff Severtson, Heather McDaniel, Andrew Rosenblum, Chunki Fong, Theodore J Cicero, Matthew S Ellis, Steven P Kurtz, Mance E Buttram, Richard C Dart