Long-Term Follow-Up on NRG Oncology RTOG 0915 (NCCTG N0927): A Randomized Phase 2 Study Comparing 2 Stereotactic Body Radiation Therapy Schedules for Medically Inoperable Patients With Stage I Peripheral Non–small Cell Lung Cancer

International Journal of Radiation Oncology Biology Physics - Netherlands
doi 10.1016/j.ijrobp.2017.06.052