13. Patients who are considered to have a greater risk of medical care due to a serious, uncontrollable disease, non-metastatic systemic disease or active, uncontrollable infection. Some examples include, but not exclusively, uncontrolled ventricular arrhythmias, recent (3 months) myocardial infarction, uncontrollable epilepsy seizures, unstable spinal cord compression, superior vena cava syndrome, HRCT tips Bilateral interstitial lung disease or any mental illness that may obstruct informed consent.