Animal experiments showed that local application of the skin and mucousmembrane of about 1g total N-nitrosamines, it will induce local or systemic tumors, especially liver cancer.
动物实验表明，在皮肤和黏膜局部施用总量约1g的亚硝胺时，会诱发局部或全身性的肿瘤，尤其是肝脏肿瘤。
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The scientists gave ethanol to laboratory rats and found that the stomach mucousmembrane of those which had eaten strawberry extract for the previous ten days suffered less damage.