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Definition of COPD: based on evidence or opinion?
R. Pellegrino, V. Brusasco, G. Viegi, R. O. Crapo, F. Burgos, R. Casaburi, A. Coates, C. P. M. van der Grinten, P. Gustafsson, J. Hankinson, R. Jensen, D. C. Johnson, N. MacIntyre, R. McKay, M. R. Miller, D. Navajas, O. F. Pedersen, J. Wanger
European Respiratory Journal 31 (3) 681-682; DOI: 10.1183/09031936.00154307 Published 29 February 2008