Quality Use of Respiratory Medicines Group, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia. vicky.kritikos@sydney.edu.au. Department of Respiratory and Sleep Medicine, Royal Prince Alfred Hospital, Sydney, NSW, Australia. vicky.kritikos@sydney.edu.au. Optimum Patient Care, Cambridge, UK. Observational and Pragmatic Research Institute, Southbank, Singapore. Academic Primary Care, University of Aberdeen, Aberdeen, UK. Respiratory Medicine, University of Ferrara, Ferrara, Italy. Special Interest Respiratory Area, Italian Interdisciplinary Society for Primary Care, Bari, Italy. Department of Public Health and Caring Sciences, Family Medicine and Preventive Medicine, Uppsala University, Uppsala, Sweden. Allergy and Respiratory Research Group, Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK. Department Experimental and Clinical Medicine, University of Florence, Firenze, Italy. Inhalation Consultancy Ltd, Leeds, UK. NHS Greater Glasgow & Clyde R&D, Glasgow, UK. Box Surgery, Box, UK. Primary Care Respiratory Research Unit, Instituto de Investigación Sanitaria de Baleares (IdISBa), Palma, Spain. Department of Primary Health Care Services, Norwegian Directorate of Health, Oslo, Norway. Department of Primary Care, University of Groningen, University Medical Centre Groningen, Groningen, Netherlands. Quality Use of Respiratory Medicines Group, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia. Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia. Central Sydney Local Area Health District, Sydney, NSW, Australia.