Cell type Peptide level ±SEM N compared P Novikoff hepatoma 95 18 3     Rat liver 179 24 3     Mouse liver 185 10 3     All normal liver cells 177.5 9.8 6 1 and 4 0.0078 All normal cells 187.4 7.9 12     All malignant cells 116.8 7.0 12 5 and 6 0.0001

Table 2: Level of active peptides released at pH 9.5 from DNA.