International variation in the prevalence of COPD (The BOLD Study): a population-based prevalence study

Authors: A. Sonia Buist, Mary Ann McBurnie, William M. Vollmer, Suzanne M. Gillespie, Peter Burney, David M. Mannino, Ana MB Menezes, Sean D. Sullivan, Todd A. Lee, Kevin B. Weiss, Robert L. Jensen, Guy B. Marks, Amund Gulsvik, Ewa Niżankowska‐Mogilnicka - The Lancet 2007 cited by 2,381