3. Tissue from the time of original diagnosis will be adequate for enrollment on study. Optional fresh tissue biopsy must be obtained AFTER their most recent chemotherapy (including small molecule or targeted therapy) or radiation therapy. Tumors that can be biopsied percutaneously (with or without computed tomography (CT)/ultrasound guidance) or via bronchoscopy will be considered accessible if there are no other competing risk factors such as coagulopathy, hypoxemia, unstable cardiovascular disease, uncontrolled pain, or inability to give informed consent.