ERS | monograph Guest Editors Kian Fan Chung Kian Fan Chung is Professor of Respiratory Medicine and Head of Experimental Studies at the National Heart and Lung Institute, Imperial College London (London, UK). He is also an Honorary Consultant Respiratory Physician at the Royal Brompton and Harefield NHS Trust (London, UK), and a Senior Investigator of the UK National Health Service National Institute for Health Research. Kian Fan Chung trained in internal and respiratory medicine in London and Oxford (UK), before undertaking post-doctoral training as a Medical Research Council UK Visiting Scientist at the Cardiovascular Research Institute at the University of California San Francisco (San Francisco, CA, USA). He was awarded MD and DSc degrees in 1983 and 2001, respectively, from the University of London (London, UK). Kian Fan Chung has a major interest in developing precision medicine for chronic obstructive airways disease. His team studies epithelial–macrophage interactions at the airway interface, the effects of mitochondrial oxidant stress, the mechanisms of corticosteroid resistance and the pulmonary impact of environmental pollution and nanoparticles. He has received research grants from the UK Medical Research Council, the UK National Environmental Research Council, the UK Engineering and Physical Sciences Research Council, the Wellcome Trust, the European Union (EU) Innovative Medicines Initiative, EU Horizon 2020, the US National Institute of Health, the US National Institute for Environmental Health Sciences and the US Health Effects Institute. Kian Fan Chung serves on the editorial boards of several respiratory and pharmacological journals. He has authored and co-authored more than 800 scientific articles, reviews and book chapters. Copyright ©ERS 2019. Print ISBN: 978-1-84984-103-0. Online ISBN: 978-1-84984-104-7. Print ISSN: 2312-508X. Online ISSN: 2312-5098. vi https://doi.org/10.1183/2312508X.10019519