The TEL/AML1 fusion genes were cloned into plasmids and sequenced.     ///    We determined the incidence of TEL/AML1 translocation with reverse transcriptase polymerase chain reaction (RT-PCR) and flow-cytometric immunophenotyping of newly diagnosed pediatric acute lymphoblastic leukemia patients in Thailand.     ///    "Of 35 ALL patients, we found an incidence of 8.6% of TEL/AML1 translocation in ALL patients (12% of B-lineage ALL), which is lower than that reported in caucasians but is similar to that reported in Japanese and Koreans. "    ///    Cloning and sequencing of ETV6/RUNX1 (TEL/AML1) variant in acute lymphoblastic leukemia..     ///    "Interestingly, the two TEL/AML1 subclones were CD20 negative, and one subclone expressed a myelocytic marker (CD33+). "    ///    Two TEL/AML1 subclones from bone marrow of ALL patients were isolated and sequenced. 