TCF3-PBX1 (2.1?%) was associated with inferior outcome and higher central nervous system (CNS) relapse risk.     ///    "The most common FOs are BCR-ABL, MLL-AF4, ETV6-RUNX1, and TCF3-PBX1, all of which have important prognostic and drug selection implications. "    ///    "The most common FOs are BCR-ABL, MLL-AF4, ETV6-RUNX1, and TCF3-PBX1, all of which have important prognostic and drug selection implications."