Horsley, Alex R, Belcher, John, Bayfield, Katie, Bianco, Brooke, Cunningham, Steve, Fullwood, Catherine, Jones, Andrew, Shawcross, Anna, Smith, Jaclyn A, Maitra, Anirban, Gilchrist, Francis J, "Longitudinal assessment of lung clearance index to monitor disease progression in children and adults with cystic fibrosis.", Thorax, 2021