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Comment
. 1998 Mar 14;316(7134):862.

Effect on mortality of switching from cigarettes to pipes or cigars. Study underestimated difference in risk

B R O'Driscoll
Comment

Effect on mortality of switching from cigarettes to pipes or cigars. Study underestimated difference in risk

B R O'Driscoll. BMJ. .
No abstract available

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Comment on

References

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