26.11.2007
opracowanie na podstawie: International variation in the prevalence of COPD (The BOLD Study): a population-based prevalence study
A.S. Buist, M.A. McBurnie, W.M. Vollmer, S. Gillespie, P. Burney, D.M. Mannino, A.M.B. Menezes, S.D. Sullivan, T.A. Lee, K.B. Weiss, R.L. Jensen, G.B. Marks, A. Gulsvik, E. Nizankowska-Mogilnicka, on behalf of the BOLD Collaborative Research Group
The Lancet, 2007; 370: 741–750