Although the primary origin of this condition is unknown, recent research indicates that in 8 to 14% of individuals, genealogy is a key risk factor [41]
Secondhand smoke exposure doesnt just affect smokers
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In fact, it is now well known, that COPD may start in childhood, when genetic and environmental factors may lead to reduced lung growth
[130] Forinash AB Jamie M Pitlick, Kylie Clark, Valerie Alstat
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