Even so, previous studies point to smoking duration having a major impact on the development of COPD.14,15 Some authors point out that collecting smoking duration is a much more accurate measure than smoking intensity.9 Using daily cigarettes to assess smoking intensity may be an inaccurate measure as a smoker is unlikely to smoke the same number of cigarettes per day throughout his/her life
From glass to plastic I stand up, put on my shoes, and walk over to the grocery store
under the brand names of 1839, 1st Class, Ace, Shield, Traffic, Ultra Buy and Wildhorse
Krashinsky, Susan (2012-08-03)
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