Opioids Intoxication, Diversion And Pharmacogenomics for a Case Involving Methadone And Oxycodone Ninth International Congress of Therapeutic Drug Monitoring and Clinical Toxicology Susan, G. B., Shi, R. Z., Jin, M., Jannetto, P. J., Jentzen, J. M., Wong, S. H. Therapeutic Drug Monitoring. 2005