(Q45077297)
Statements
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Productive cough is an independent risk factor for the development of COPD in former smokers (English)
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Takashi Yamane
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Noboru Hattori
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Yoshihiro Kitahara
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Yoshinori Haruta
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Hideo Sasaki
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Akihito Yokoyama
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Nobuoki Kohno
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11 January 2010
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15
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2
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313-318
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Identifiers
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