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.


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.



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