Drug Test Services & Accessories
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Testing of hair will provide an indicator of drug use at the time the hair was grown. Hair sample..
According to drug testing regulations, positive drug screen results must be confirmed by GC/MS. T..
This service available only as a confirmation for preliminary positive results obtains with 6 par..
Specimen validity testing refers to the urine drug tests and has a purpose to determine if a urin..
For the visual determination of oxidants, creatinine, nitrite, glutaraldhyde, pH and chromate val..
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