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Difference between revisions of "Pack year"
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====Example 3==== | ====Example 3==== | ||
3 cigarettes per day for 50 years: 3/20 * 50 = 7.5 py | 3 cigarettes per day for 50 years: 3/20 * 50 = 7.5 py | ||
==See also== | |||
*[[Smoking]]. | |||
==References== | ==References== | ||