Measurement of SIL-TAL1 fusion gene transcripts associated with human T-cell lymphocytic leukemia by real-time reverse transcriptase-PCR..     ///    A reverse transcriptase real-time PCR assay to quantify SIL-TAL1 fusion genes is described.     ///    A SIL-TAL1 fusion gene RNA transcript was built that permitted absolute standard curves to be generated.     ///    "No RAG2 expression was detected in these expanded samples, suggesting that the clones bearing the SIL-TAL1 fusion gene may have existed at low levels prior to the ex vivo expansion.. "    ///    "However, when lymphocytes from three adults were cultured in vitro the SIL-TAL1 transcript was detectable in the RNA isolates. "    ///    None of the samples showed any SIL-TAL1 expression. 