If the patient received major surgery, they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting ther apy. 6.3 Subject Exclusion Criteria 1. Currently participating and receiving another study therapy or has participated in a study of an investigational agent and received study therapy or used an investigational device within 4 weeks of the first dose of treatment. 2. Prior radiation therapy precluding SBRT Memorial Sloan Kettering Cancer Center IRB Number: 17- 358 A(7) Approval date: 25 -Feb-2022 Page 17 of 51 3. Continuous oxygen use 4.