3. Donors will complete the Adult Donor History Questionnaire and have all laboratory studies included in the Donor Referral NTL Panel, CBC with auto or manual differential, and a Chemistry Panel within 7 days of scheduled collection procedure. Donors who were evaluated greater than 1 year prior for transplant collection will also have a history and Physical Exam, CXR, and EKG completed. Donors must not have any medical condition which would make apheresis more than a minimal risk, and should have normal range laboratory findings. All abnormal laboratory findings will be evaluated by the treating physician within the context of the entire donor assessment process.