sentences:  Three single-nucleotide polymorphisms (SNPs) were identified and were all present both in AML patients and in healthy donors.This result suggests that the occurrence of these SNPs in the promoter region of the survivin gene also appears to be of no importance to survivin expression.However, it has not been ruled out yet that there may be other possible epigenetic mechanisms that may be responsible for a high level of survivin expression observed in cancer cells and not in normal cells.