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0 pointsraldi12y ago0 comments

I'm not following; could you elaborate?

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The control group should be smokers not non-smokers and if all the cocaine using group are also smokers the difference should be the effect of the cocaine.

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0 pointsraldi12y ago0 comments

I'm not following; could you elaborate?

0 comments

josephlord12y ago

The control group should be smokers not non-smokers and if all the cocaine using group are also smokers the difference should be the effect of the cocaine.

j / k navigate · click thread line to collapse