nr pkg gupta marboro man dies smoking evolution _00002803.jpg
nr pkg gupta marboro man dies smoking evolution _00002803.jpg

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    How cigarettes became a health hazard

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How cigarettes became a health hazard

CNN's Dr. Sanjay Gupta takes a look back at how cigarettes went from habit to health hazard.

How cigarettes became a health hazard

CNN's Dr. Sanjay Gupta takes a look back at how cigarettes went from habit to health hazard.