Global Strategy for the Diagnosis, Management, and Prevention of Chronic Obstructive Lung Disease 2017 Report. GOLD Executive Summary

German Center for Lung Research, Temple University, NewYork–Presbyterian Hospital, Cornell University, New York Hospital Queens, Presbyterian Hospital, The University of Texas Health Science Center at San Antonio, South Texas Veterans Health Care System, Imperial College London, McGill University Health Centre, Brigham and Women's Hospital, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, KU Leuven, University of Modena and Reggio Emilia, Flinders University, Royal Devon and Exeter Hospital, Universidad de la República de Uruguay, Hospital Maciel, Lung Institute, State Key Laboratory of Respiratory Disease, Hokkaido University, Université Paris Cité, Hôpital Cochin, Assistance Publique – Hôpitaux de Paris, Universitat de Barcelona, University of British Columbia, St. Paul's Hospital, University of Manchester, NIHR Surgical Reconstruction and Microbiology Research Centre, Centro de Investigación Biomédica en Red de Enfermedades Respiratorias