title: Update in chronic obstructive pulmonary disease 2005.
authors: Department of Respiratory Diseases, University of Modena and Reggio Emilia, Via del Pozzo 71, 41100 Modena, Italy. fabbri.leonardo@unimo.it
authors: Leonardo M
authors: LM
authors: Fabbri
authors: Fabrizio
authors: F
authors: Luppi
authors: Bianca
authors: B
authors: Beghé
authors: Klaus F
authors: KF
authors: Rabe