Nyeng, Tine B., Jesper F. Kallehauge, Morten Høyer, Jørgen B. B. Petersen, Per R. Poulsen, and Ludvig P. Muren. 2011. “Clinical Validation of a 4D-CT Based Method for Lung Ventilation Measurement in Phantoms and Patients”. Acta Oncologica 50 (6):897-907. https://doi.org/10.3109/0284186X.2011.577096.