TY - CONF T1 - O4 Assessing longitudinal change in lung function using 129 Xe-MRI and pulmonary function testing in cystic fibrosis JO - Oral Abstracts UR - https://doi.org/10.1136/bmjresp-2026-artp.4 PY - 2026/07/01 AU - Jakymelen D AU - Smith L AU - Wild J ED - DO - DOI: 10.1136/bmjresp-2026-artp.4 PB - British Thoracic Society SP - A3 EP - A3 Y2 - 2026/08/03 ER -