PB1750: REARRANGEMENTS OF T-CELL RECEPTOR (TCR) LOCI IN CHILDREN WITH T-CELL ACUTE LYMPHOBLASTIC LEUKEMIA - L. Lizcova; E. Prihodova; L. Pavlistova; K. Svobodova; L. Hodanova; E. Mejstrikova; O. Hrusak; I. Janotova; L. Sramkova; J. Stary; Z. Zemanova (HemaSphere, 2022)