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Journal
Respir Res
Volume
6
Pages
98
Publication year
2005
Suggested citation
Ekberg-Aronsson M, Pehrsson K, Nilsson JA, Nilsson PM, Löfdahl CG. Mortality in GOLD stages of COPD and its dependence on symptoms of chronic bronchitis. Respir Res. 2005; 6: 98.