Table 1. Summary of ALL-19 PDXs determined in SNP genotyping. Each sample represents an ALL-19 xenograft derived from an individual mouse.

	Sample numbers	Executive ID	Contaminated sample counts
Passage 1	1 (patient sample)	P1	0
Passage 3	6	P3-1 to P3-6	0
Passage 4	6	P4-1 to P4-6	0
Passage 5	62	P5-1 to P5-62	8 (P5-15, P5-16, P5-18, P5-21, P5-22, P5-24, P5-25, P5-26)