CD4 and fibrosis: Suggestive correlations between the numbers of CD4 + Il13+ cells at 6 h with fibrosis (R = −0.71, p = 0.1, an inverse correlation), and the numbers of CD4 + Ifnγ + cells at 7 days with survival time (R = 0.75, p = 0.08), were revealed, as shown in Additional file 3: Figure S3.