Siva, Shankar, Jason W. Callahan, Tomas Kron, Brent Chesson, Stephen A. Barnett, Michael P. Macmanus, Rodney J. Hicks, and David L. Ball. 2015. “Respiratory-Gated (4D) FDG-PET Detects Tumour and Normal Lung Response After Stereotactic Radiotherapy for Pulmonary Metastases”. Acta Oncologica 54 (8):1105-12. https://doi.org/10.3109/0284186X.2015.1027409.