 - All immunodiagnoses are eligible for E1906, except acute promyelocytic leukemia APL proven by the presence of promyelocytic leukemia PMLretinoic acid receptor RAR alpha; cases of APL can become eligible if the patient is ineligible for an ECOG-ACRIN APL trial or if all-trans retinoic acid or arsenic trioxide is not planned as part of the treatment regimen 