TCF3 and acute lymphoblastic leukemia: They are also frequent in China and Italy, comprising 19% and 9% of B‐ALL without major genetic abnormalities such as BCR::ABL1, TCF3::PBX1, ETV6::RUNX1, or KMT2A rearrangement,10, 11 respectively, suggesting that they are tend to be more frequent in Asian patients.