B. Cawthon

Urine drug testing of chronic pain patients. III. Normetabolites as biomarkers of synthetic opioid use.

R. Heltsley, E. Cone, Y. Caplan, 2010, Journal of analytical toxicology.

Multiple drug ingestion by ecstasy abusers in the United States.

E. Cone, Y. Caplan, F. Moser, 2009, Journal of analytical toxicology.

Overdose and death with olanzapine: two case reports.

B. Cawthon, J. Gerber, 2000, The American journal of forensic medicine and pathology.

Urine drug testing of chronic pain patients. II. Prevalence patterns of prescription opiates and metabolites.

R. Heltsley, E. Cone, Y. Caplan, 2010, Journal of analytical toxicology.

Urine testing for norcodeine, norhydrocodone, and noroxycodone facilitates interpretation and reduces false negatives.

R. Heltsley, E. Cone, Y. Caplan, 2010, Forensic science international.

Urine drug testing of chronic pain patients. II. Prevalence patterns of prescription opiates and metabolites.

R. Heltsley, E. Cone, Y. Caplan, 2010, Journal of analytical toxicology.