Affiliations

• ¹ Division of Respirology, Critical Care and Sleep Medicine, University of Saskatchewan, Saskatoon, SK, Canada brian.graham@usask.ca.
• ² Dept of Internal Medicine, University of Genoa, Genoa, Italy.
• ³ Respiratory Diagnostic Center, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain.
• ⁴ Lung Function and Sleep, Queen Elizabeth Hospital, University of Birmingham, Birmingham, UK.
• ⁵ Pulmonary Division, University of Utah, Salt Lake City, UT, USA.
• ⁶ Dept of Respiratory Medicine, Bristol Royal Infirmary, Bristol, UK.
• ⁷ Pulmonary, Allergy and Critical Care Medicine, Duke University Medical Center, Durham, NC, USA.
• ⁸ Allergy, Immunology and Respiratory Medicine, The Alfred Hospital and Monash University, Melbourne, Australia.
• ⁹ Consultant, Rochester, MN, USA.