The src protein was undetectable in the liver specimens from HBx and HBx(p53-) fish aged 1.5 to 9 months that appeared normal (Figure 5B1~B3, C1~C3), as well as in the liver sections from fish aged 11 months that had only developed steatosis (Figure 5B4) or chronic inflammation (Figure 5C4). This evidence concerns the gene SRC and steatosis.