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Quest Diagnostics

(credit: CBS)

More Colorado Workers Testing Positive For Marijuana

More Colorado workers are testing positive for marijuana since the state legalized recreational use of the drug.

09/15/2014

Goerge Karl at the news conference on Tuesday (credit: CBS)

George Karl Urges Coloradans To Join Cancer Prevention Study

The American Cancer Society is looking for hundreds of thousands of volunteers. They’ll need to make a 20-year commitment, but the payoff will be a better understanding of what causes cancer.

11/08/2011

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