Article Information
vol. 15 no. 101 197-199
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History
- Published online June 19, 2007.
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© ERSJ Ltd
Author Information
- Masaru Hasegawa,
- Yasuyuki Nasuhara,
- Yuya Onodera,
- Hironi Makita,
- Tomoko Betsuyaku,
- Masaharu Nishimura and
- Hokkaido COPD Cohort Study Group
- Masaru Hasegawa, Division of Respiratory Medicine, Dept of Internal Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan