Patients known to be positive for human immunodeficiency virus (HIV) are not eligible Patients that are known to be positive for human immunodeficiency virus (HIV) are not eligible; note: inclusion of HIV positive patients will be considered at a later date The patient must NOT have a known positive test for human immunodeficiency virus (HIV); patients do not need to be screened for HIV; patients with HIV are excluded Known human immunodeficiency virus (HIV)-positive Known human immunodeficiency virus (HIV) positive The subject is known to be positive for the human immunodeficiency virus (HIV) Known to be human immunodeficiency virus (HIV) positive. Known human immunodeficiency virus (HIV)-positive participants are ineligible Known human immunodeficiency virus (HIV)-positive Known human immunodeficiency virus (HIV)-positive participants are ineligible Participant known to be human immunodeficiency virus (HIV)-positive Known human immunodeficiency virus (HIV) positive Known to be human immunodeficiency virus (HIV) positive Known positive for human immunodeficiency virus (HIV) Patient is known to be human immunodeficiency virus (HIV)-positive Patients known to be human immunodeficiency virus (HIV)-positive Known human immunodeficiency virus (HIV) positive Patient known to be human immunodeficiency virus (HIV)-positive and requiring antiretroviral therapy Known to be human immunodeficiency virus (HIV)-positive Known human immunodeficiency virus positive (HIV+) patients Positive for known human immunodeficiency virus (HIV) Infection Known to be human immunodeficiency virus positive (HIV+) Known human immunodeficiency virus (HIV)-positive Known human immunodeficiency virus (HIV) positive patients Known human immunodeficiency virus (HIV) positive Known human immunodeficiency virus (HIV)-positive participants (even if on combination retrovirals, participant will be excluded) Known human immunodeficiency virus (HIV) positive Known positive serology for human immunodeficiency virus (HIV) Known human immunodeficiency virus (HIV)-positive Known positive serology for human immunodeficiency virus (HIV). Have known (previously documented) positive results for human immunodeficiency virus (HIV). Known human immunodeficiency virus (HIV) positive Active human immunodeficiency virus (HIV) infection or known human immunodeficiency virus (HIV) positive serology Known to be human immunodeficiency virus (HIV)-positive Patients known to be human immunodeficiency virus (HIV)-positive Patients who are known to be (i.e. documented in medical records) human immunodeficiency virus (HIV) positive are not eligible Active autoimmune disorders, including patients known to be human immunodeficiency virus (HIV) positive, or those requiring chronic steroid administration (excluding inhaled steroids) Active human immunodeficiency virus (HIV) infection or known HIV positive serology Known human immunodeficiency virus (HIV) positive Patient with known positive serology for human immunodeficiency virus (HIV) Active human immunodeficiency virus (HIV) infection or known HIV positive serology Known to be human immunodeficiency virus positive Patients known to be human immunodeficiency virus (HIV)-positive Known to be human immunodeficiency virus positive (HIV+) Known to be human immunodeficiency virus positive known human immunodeficiency virus infection (positive HIV antibodies). PART : Evidence of human immunodeficiency virus (HIV) infection or known HIV positive serology Patients known to be positive for human immunodeficiency virus (HIV) Patients known to be human immunodeficiency virus (HIV) positive Known human immunodeficiency virus (HIV) positive Known human immunodeficiency virus (HIV)-positive patients Patient is known to be human immunodeficiency virus (HIV)-positive Known human immunodeficiency virus (HIV)-positive patients are excluded from the study Known human immunodeficiency virus (HIV) positive Patients known to be human immunodeficiency virus (HIV)-positive (the concern for opportunistic infection and hematologic reserve are considered to be significantly greater in this population) Evidence of human immunodeficiency virus (HIV) infection or known HIV positive serology Evidence of human immunodeficiency virus (HIV) infection or known HIV positive serology Known human immunodeficiency virus (HIV) positive History of human immunodeficiency virus (HIV) infection or known positive serology Evidence of human immunodeficiency virus (HIV) infection or known HIV positive serology Active human immunodeficiency virus (HIV) infection or known HIV positive serology Patient is known to be human immunodeficiency virus (HIV)-positive. Known to be human immunodeficiency virus positive Patient has known positive serology for human immunodeficiency virus (HIV). Known human immunodeficiency virus (HIV)-positive individuals Patient with known positive serology for human immunodeficiency virus (HIV) Have known (previously documented) positive results for human immunodeficiency virus (HIV). Known human immunodeficiency virus (HIV)-positive individuals Known human immunodeficiency virus (HIV)-positive patients are excluded from the study Evidence of human immunodeficiency virus (HIV) infection or known HIV positive serology Patient with known positive serology for human immunodeficiency virus (HIV) Known human immunodeficiency virus (HIV) positive Known human immunodeficiency virus (HIV) positive Patients must not be known to be human immunodeficiency virus (HIV)-positive Known to be human immunodeficiency virus positive Patients who are known to be human immunodeficiency virus (HIV) positive Patients who are known to be human immunodeficiency virus (HIV) positive are not eligible Patients who are known human immunodeficiency virus (HIV) positive are not eligible Known to be positive for human immunodeficiency virus (HIV) Known positive for human immunodeficiency virus (HIV) Known to be human immunodeficiency virus positive Known human immunodeficiency virus (HIV)-positive individuals Known human immunodeficiency virus (HIV) positive Individuals who are known to be human immunodeficiency virus (HIV)-positive are excluded from this study Patients known to be human immunodeficiency virus (HIV) positive Known to be human immunodeficiency virus (HIV) positive Patients known to be human immunodeficiency virus (HIV)-positive Subjects known to be human immunodeficiency virus (HIV) positive Patients must not be known to be human immunodeficiency virus (HIV) positive Known human immunodeficiency virus (HIV) positive patient Patients known to be positive for human immunodeficiency virus (HIV) are not eligible Known human immunodeficiency virus (HIV) positive Known to be human immunodeficiency virus (HIV) positive Evidence of human immunodeficiency virus (HIV) infection or known HIV positive serology Patients with congenital immunodeficiency, chromosomal breakage syndrome, prior organ transplantation, previous malignancy of any type, or known positive human immunodeficiency virus (HIV) serology Known human immunodeficiency virus (HIV) positive Known to be human immunodeficiency virus positive (HIV+) Patients known to be human immunodeficiency virus (HIV) positive Known human immunodeficiency virus (HIV)-positive patients Known human immunodeficiency virus (HIV) positive patients; patients do not need to undergo specific screening for HIV to participate in this protocol, but those patients with known or documented infection of HIV are excluded Participants known to be positive for Human Immunodeficiency Virus (HIV). Patients known to be human immunodeficiency virus (HIV) positive or known to have hepatitis B and/or C are excluded Known to be human immunodeficiency virus (HIV) positive Patients known to be human immunodeficiency virus (HIV)-positive are ineligible Known to be human immunodeficiency virus (HIV) positive Patients with known positive human immunodeficiency virus (HIV) are excluded Known human immunodeficiency virus (HIV)-positive patients and those with known hepatitis B or C are excluded from the study Is known to be Human Immunodeficiency Virus (HIV) positive Known human immunodeficiency virus (HIV) positive Patients known to be human immunodeficiency virus (HIV) positive Evidence of human immunodeficiency virus (HIV) infection or known HIV positive serology Known history of human immunodeficiency virus (HIV) positive. Known positive serology for human immunodeficiency virus (HIV) and known history of HIV Known to be positive for human immunodeficiency virus (HIV). Subjects known to be positive for Human immunodeficiency virus (HIV) infection. Known human immunodeficiency virus (HIV) positive Known human immunodeficiency virus (HIV)-positive patients are ineligible Known human immunodeficiency virus (HIV) positive. Patients known to be human immunodeficiency virus (HIV) positive are not eligible for the study Known human immunodeficiency virus (HIV) positive The patient is known to be positive for Human Immunodeficiency Virus (HIV) or has another confirmed or suspected immunosuppressive or immunodeficient condition (patients with thyroiditis are eligible) Patients who are known to be human immunodeficiency virus (HIV) positive are not eligible for this study Known history of human immunodeficiency virus (HIV) positive Known human immunodeficiency virus (HIV) positive Patients known to be human immunodeficiency virus (HIV)-positive Patients known to be human immunodeficiency virus (HIV)-positive Known positive for human immunodeficiency virus (HIV) Known human immunodeficiency virus (HIV) positive Patient has known, uncontrolled human immunodeficiency virus (HIV)-positive diagnosis Individuals known to be human immunodeficiency virus (HIV)-positive may not participate in this study Known human immunodeficiency virus (HIV) positive patients due to the previous toxicity noted with [F] FLT in this patient group Known human immunodeficiency virus (HIV) positive patients Patients known to be human immunodeficiency virus (HIV) positive Patients known to be human immunodeficiency virus (HIV) positive Known human immunodeficiency virus (HIV) positive or HIV-related malignancy.