Article
Characterisation of phenotypes based on severity of emphysema in chronic obstructive pulmonary disease.
Thorax - 1 Nov 2007
Makita Hironi, Nasuhara Yasuyuki, Nagai Katsura, Ito Yoko, Hasegawa Masaru, Betsuyaku Tomoko, Onodera Yuya, Hizawa Nobuyuki, Nishimura Masaharu
Abstract excerpt
BACKGROUND: Airflow limitation in chronic obstructive pulmonary disease (COPD) is caused by a mixture of small airway disease and emphysema, the relative contributions of which may vary among patients. Phenotypes of COPD classified purely based on severity of emphysema are not well defined and may be different from the classic phenotypes of "pink puffers" and "blue bloaters". METHODS: To characterise clinical...
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