University of Pittsburgh - Department of Human Genetics, University of British Columbia (UBC) - Division of Respiratory Medicine, University of Calgary - Division of Respiratory Medicine, University of British Columbia (UBC) - Division of Respiratory Medicine, University of Saskatchewan, McGill University - Division of Respiratory Medicine, affiliation not provided to SSRN, University of Toronto, McMaster University, Medical University of South Carolina, University of Pittsburgh - Department of Environmental and Occupational Health, University of Pittsburgh, University of Pittsburgh, University of Pittsburgh - Department of Medicine and Pulmonary and Critical Care Medicine, University of Pittsburgh, University of British Columbia (UBC) - Division of Respiratory Medicine and University of Pittsburgh - Medical Center (UPMC)

University of Pittsburgh - Department of Human Genetics, University of British Columbia (UBC) - Centre for Heart Lung Innovation, University of British Columbia (UBC) - Centre for Heart Lung Innovation, University of British Columbia (UBC) - Centre for Heart Lung Innovation, University of Nottingham, University of Pennsylvania, University of Pittsburgh - Department of Environmental and Occupational Health, University of Pittsburgh, University of Calgary - Division of Respiratory Medicine, University of Pittsburgh, University of Pittsburgh, University of Pittsburgh - Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, Medical University of South Carolina, University of British Columbia (UBC) - Centre for Heart Lung Innovation, University of British Columbia (UBC) - Centre for Heart Lung Innovation, University of Pittsburgh, University of British Columbia (UBC) - Centre for Heart Lung Innovation, University of Pittsburgh - Medical Center (UPMC), University of British Columbia (UBC) - Division of Respiratory Medicine, University of British Columbia (UBC) - Centre for Heart Lung Innovation and University of Pittsburgh - Department of Medicine and Pulmonary and Critical Care Medicine

University of Pittsburgh - Department of Human Genetics, University of Pittsburgh - Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of British Columbia (UBC) - Division of Respiratory Medicine, University of British Columbia (UBC) - Division of Respiratory Medicine, University of Calgary - Division of Respiratory Medicine, University of Pittsburgh - Department of Environmental and Occupational Health, Medical University of South Carolina, University of Pittsburgh, University of Pittsburgh, University of Pittsburgh, University of Pittsburgh - Medical Center (UPMC) and University of Pittsburgh - Department of Medicine and Pulmonary and Critical Care Medicine

University of British Columbia (UBC), University of British Columbia (UBC), University of British Columbia (UBC), University of British Columbia (UBC), McMaster University, University of Calgary - Division of Respiratory Medicine, McGill University, University of Toronto, University of Montreal, University of Saskatchewan, University of British Columbia (UBC) - Division of Respiratory Medicine, McMaster University and University of British Columbia (UBC) - Division of Respiratory Medicine