Tumor volume reduction evaluated by cone beam computed tomography during stereotactic body radiotherapy for early stage non-small cell lung cancer - Gaines, Dakim K.; Yegya-Raman, Nikhil; Kim, Sinae; Simone II, Charles B.; Theodorou Ross, Christina; Deek, Matthew P.; Lam, Sarah; Feigenberg, Steven J.; Osorio, Benedict; Nie, Ke; Zou, Wei; Patel, Malini; et al. (Journal of Thoracic Disease; Vol 12, No 5 (May 28, 2020): Journal of Thoracic Disease, 2020)