The percentages of T, NKT-like or NK cells producing IFNγ and TNFα in the BAL of children with BE compared with controls There was no significant differences in the percentages of T, NKT-like or NK cells producing IFNγ and TNFα in the BAL of children with BE compared with controls (p>0.05 for all). Here, IFNG is linked to Barrett esophagus.