1. Interstitial Lung Diseases Unit, North West Lung Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester M23 9LT, UK
2. Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast BT9 7BL, UK
3. Mater Hospital, Belfast Health and Social Care Trust, Belfast BT14 6AB, UK
4. Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK
5. School of Medicine, Magee Campus, University of Ulster, Northlands Road, Londonderry BT48 7JL, UK