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The Nation

March 10, 1987

Blood and urine testing of about 300 truck drivers along a major interstate highway in Tennessee indicated about 30% had taken drugs or used alcohol, the Insurance Institute for Highway Safety said. The voluntary tests found marijuana in the urine of 14% and also in the blood of 3% of the truckers, the institute said. The survey found phenylpropanolamine, a component in over-the-counter diet and cold pills that can be used as a stimulant, in the urine of 11%, cocaine in 2%, amphetamines and alcohol in 1%.

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