Patients must have the psychological ability and general health that permits completion of the study requirements and required follow up Patients must have the psychological ability and general health that permits completion of the study requirements and required follow up. Patients must have the psychological ability and general health that permits informed consent, completion of the study requirements, and required follow up Patients must have the psychological ability and general health that permits completion of the study requirements and required follow up General poor health, multiple co-morbidities placing the patient at risk or otherwise unsuitable for trial participation DONOR: In general good health, and medically able to tolerate leukapheresis In general good health as determined by the medical provider DONOR: In general good health as determined by the evaluating medical provider DONOR: In general good health, and medically able to tolerate leukapheresis required for harvesting the NK cells for this study DONOR: Medical history and physical examination confirm good health status as defined by institutional standards Poor general health (ASA class>) DONOR: In good general health DONORS: In general good health as determined by the medical provider Patients must have the psychological ability and general health that permits completion of the study requirements and required follow-up DONOR: In general good health in the opinion of the evaluating medical provider DONOR: In general good health as determined by the evaluating medical provider DONOR: In general good health as determined by the evaluating medical provider DONOR: Donor must be in general good health and eligible for apheresis as determined by the medical provider DONOR: In general good health as determined by the evaluation medical personnel GENERAL MEDICAL EXCLUSIONS: DONOR: Donors must be in a state of general good health DONOR: In general good health as determined by the evaluating medical provider DONOR: In general good health as determined by the medical provider The donor is in good health DONOR: In general good health as determined by the evaluating medical provider General and Demographics GENERAL CRITERIA In good physical health (no unstable medical condition); Reasonably good health GENERAL MEDICAL EXCLUSIONS Must be in general good health Women in good general health Generally good health as determined by medical history Good general health with no history of diabetes, coronary artery disease, peripheral arterial disease, chronic disease or hypertension GENERAL POPULATION: Be in good general health Appear to be in general good health and in good health (other than having breast lesions); Good physical health (no unstable medical or mental health condition) Patients must be in adequate general medical health to safely tolerate a craniotomy Generally good health; Unstable health