APA

Cone E. J., Presley L., Lehrer M., Seiter W., Smith M., Kardos K. W., Fritch D., Salamone S. & Niedbala R. S. (20030613). Oral fluid testing for drugs of abuse: positive prevalence rates by Intercept immunoassay screening and GC-MS-MS confirmation and suggested cutoff concentrations. : Journal of analytical toxicology.

Chicago

Cone Edward J, Presley Lance, Lehrer Michael, Seiter William, Smith Melissa, Kardos Keith W, Fritch Dean, Salamone Sal and Niedbala R Sam. 20030613. Oral fluid testing for drugs of abuse: positive prevalence rates by Intercept immunoassay screening and GC-MS-MS confirmation and suggested cutoff concentrations. : Journal of analytical toxicology.

Harvard

Cone E. J., Presley L., Lehrer M., Seiter W., Smith M., Kardos K. W., Fritch D., Salamone S. and Niedbala R. S. (20030613). Oral fluid testing for drugs of abuse: positive prevalence rates by Intercept immunoassay screening and GC-MS-MS confirmation and suggested cutoff concentrations. : Journal of analytical toxicology.

MLA

Cone Edward J, Presley Lance, Lehrer Michael, Seiter William, Smith Melissa, Kardos Keith W, Fritch Dean, Salamone Sal and Niedbala R Sam. Oral fluid testing for drugs of abuse: positive prevalence rates by Intercept immunoassay screening and GC-MS-MS confirmation and suggested cutoff concentrations. : Journal of analytical toxicology. 20030613.