Mucosal mRNA expression levels of T-box 21 (TBX21) and GATA binding protein 3 (GATA3) did not differ between A-NEC-XBP1s and A-NEC-XBP1u patients (Figure S5B and S5C), indicating that the total abundances of Th1 and Th2 cells were not changed between A-NEC-XBP1s and A-NEC-XBP1u patients. The gene discussed is TBX21; the disease is necrotizing enterocolitis.