Scott C Bell1, Patrick A Flume2, Carlo Castellani3. 1. Thoracic Medicine, The Prince Charles Hospital, Brisbane, Australia; Translational Research Institute, Brisbane, Australia; Children's Health Research Centre, The University of Queensland, Brisbane, Australia. Electronic address: scott.bell@health.qld.gov.au. 2. Medical University of South Carolina, Charleston, SC, United States. 3. Cystic Fibrosis Centre, IRCCS Giannina, Gaslini Institute, Genoa, Italy.