University of Exeter, CommPharm Consulting, University of Toronto - St. Michael’s Hospital, RESPIPLUS, University of British Columbia (UBC), McGill University, Canadian Heart Research Centre, McGill University - Meakins-Christie Laboratories, McGill University, University of Toronto - St. Michael’s Hospital, RESPIPLUS and Respiratory Epidemiology and Clinical Research Unit, Research Institute of McGill University Health Centre, McGill University, Montreal, Canada

University of Toronto - Department of Public Health Sciences, Queen Mary University of London, Barts and The London School of Medicine and Dentistry, Blizard Institute, Wingate Institute of Neurogastroenterology, Centre for Neuroscience and Trauma, University of British Columbia (UBC) - Department of Medicine, Johns Hopkins University - Department of Psychiatry and Behavioral Sciences, University of British Columbia (UBC) - Department of Anesthesiology, Pharmacology and Therapeutics, CommPharm Consulting, University of British Columbia (UBC) - Department of Anesthesiology, Pharmacology and Therapeutics and University of British Columbia (UBC) - Department of Medicine