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T1  - Smoking patterns and lung function : a longitudinal twin study 
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UR  - URN:ISBN:978-952-10-6594-1; http://hdl.handle.net/10138/28238 
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A1  - Hukkinen, Maria 
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PB  - Helsingin yliopisto 
Y1  - 2011 
LA  - en 
AB  - In many countries, the prevalence of smoking and smokers  average cigarette consumption have decreased, with occasional smoking and daily light smoking (1-4 cigarettes per day, CPD) becoming more common. Despite these changes in smoking patterns, the prevalence of chronic obstructive pulmonary disease (COPD), a disorder characterized by a progressive decline in lung function, continues to rise globally. Smoking is the most important factor causing COPD, however, not all smokers develop the disea... 
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KW  - kansanterveystiede 
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