Although the majority of drug testing is still being performed in the United States, acceptance of drug testing has been growing in the rest of the world. Part of this is due to the realization that there is a real correlation of decreased work performance with the use of drugs.
In Europe and Asia, moreover, there is a growing awareness of the use of adulterants. In addition, the interest in oral-fluid test devices in Europe is very high, especially in the law-enforcement sector.
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