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3 votes
________more frequently develop chronic bronchitis, lung cancer, heart disease, and emphysema than________ .

User Nhahtdh
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2 Answers

0 votes
Smokers for the first blank and Nonsmokers for the second blank
User Groch
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5 votes
I think it's: SMOKERS more frequently develop chronic bronchitis, lung cancer, heart disease, and emphysema than NON-SMOKERS.
User HexInteractive
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8.0k points
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