According to a new analysis by Quest Diagnostics, one-third of U.S. industry sectors experienced year-over-year double-digit increases in positive workforce drug tests between 2015 and 2018, with marijuana the most commonly detected drug.
According to a new analysis by Quest Diagnostics, one-third of U.S. industry sectors experienced year-over-year double-digit increases in positive workforce drug tests between 2015 and 2018, with marijuana the most commonly detected drug.
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