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 DONOR: In good general health DONORS: In general good health as determined by the medical provider 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 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 In good physical health (no unstable medical condition); Reasonably good health Must be in general good health Women in good general health Generally good health as determined by medical history Be in good general health Appear to be in general good health and in good health (other than having breast lesions); INCLUSION CRITERIA - FOR NORMAL HEALTHY FEMALE COHORT: Good health conditions or without significant diseases, according to best medical judgement Good physical health (no unstable medical or mental health condition) Generally good health; Unstable health