The proportion of BCL‐2+ cells was higher in BCP‐ALL cases (60·0 ± 23·0%) compared to T‐ALL (32·8 ± 31·2%, P = 0·1) and normal cells (27·2 ± 5·0%, P = 0·08, Fig 2A). Here, BCL2 is linked to acute lymphoblastic leukemia.