Table 1. Expression of different IKZF1 isoforms in BCR-ABL1-positive B-ALL(n=42).

Expression of different IKZF1 isoforms	Positive
IK1	17(40.5%)
Pts expessing only IK1	11
Pts co-expessing IK6	1
Pts co-expessing IK4	5
IK2	14(33.3%)
Pts expressing only IK2	4
Pts co-expressing IK6	10
IK4	7(16.7%)
Pts expressing only IK4	2
Pts co-expressing IK1	5
IK6	20(47.6%)
Pts expressing only IK6	9
Pts co-expressing IK1	1
Pts co-expressing IK2	10

Abbreviation: Pts=patients.