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Original Research
Differential changes in quality of life components over 5 years in chronic obstructive pulmonary disease patients
Katsura Nagai1 First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Japan
, Hironi Makita1 First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Japan
, Masaru Suzuki1 First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Japan
, Kaoruko Shimizu1 First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Japan
, Satoshi Konno1 First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Japan
, Yoichi M Ito2 Department of Biostatistics, Hokkaido University Graduate School of Medicine, Sapporo, Japan
& Masaharu Nishimura1 First Department of Medicine, Hokkaido University School of Medicine, Sapporo, JapanCorrespondence[email protected]
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Pages 745-757
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Published online: 10 Apr 2015
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