用化学致癌物质诱发动物肝癌的实验已有大量报导,但结合现场实际用高发区食物作动物实验的极少。因此,即使知道了不少实验性致肝癌物质(包括人工合成的和天然存在的,仍未能真正应用于实际预防工作上。遵照毛主席关于“调查研究”和“要从客观存在的事实出发”的教导,我们在对肝癌高发区和低发区的环境因素的对此调查过程中,逐步发现高发区的某些饮食是主要的 There have been numerous reports of experiments using chemical carcinogens to induce liver cancer in animals. However, it is rare to use animal foods in high-incidence areas for actual animal experiments. Therefore, even if we know a lot of experimental hepatocarcinogenic substances (including synthetic and naturally occurring ones, they still cannot really be applied to practical prevention work. Compliance with Chairman Mao’s “investigative research” and "from objective existence Starting from the facts, we have gradually discovered that certain diets in high-incidence areas are the major ones in the process of investigating the environmental factors in high- and low-incidence areas of liver cancer.