The magnitude of CTA- and SALL4-specific T cell responses was stronger in patients with a low tumour burden (106.72 ± 29.03 SFUs/106 cells) than in those with a high tumour burden (15.45 ± 6.26 SFUs/106 cells, P = 0.0011; Fig. 5A). Here, SALL4 is linked to neoplasm.