1. Ulster University; Institute of Nursing and Health Research and School of Health Sciences; Shore Road Newtownabbey Northern Ireland UK BT37 0QB
2. Queen's University Belfast; The Wellcome Trust-Wolfson Northern Ireland Clinical Research Facility U Floor; Belfast City Hospital Lisburn Road Belfast Northern Ireland UK BT9 7AB
3. Royal Prince Alfred Hospital; Department of Respiratory and Sleep Medicine; Missenden Rd Camperdown NSW Australia 2050