Drug Metabolism and Disposition is publishing this Editorial Notice of Concern regarding the integrity of the LC-MS/MS data in this article. An investigation by the University of Colorado determined that some LC-MS data in several other papers were falsified or fabricated by R. S. Kadam, who was the only respondent in the investigation. The Investigation Committee was unable to validate the LC-MS data in the above-referenced publication and thus could make no definitive determination relating to the integrity of the data in this manuscript.
Dr. Edward T. Morgan
Editor