在1971年用发霉物质诱发动物实验肿瘤的初步基础上,又用食管癌高发区(磁县、井陉)的发霉薯干、发霉萝卜干及无霉薯干继续进行动物实验,以观察肿瘤的发生和探索其病因。现报告如下。材料和方法实验样品发霉薯干和无霉薯干取自食管癌高发区磁县东光禄大队,发霉萝卜干取自 In 1971 with moldy substances to induce experimental tumor in animals based on the preliminary, but also with high incidence of esophageal cancer (Cixian, Jingtai) moldy dry, moldy dried radish and moldy stems to continue animal experiments to observe the occurrence of tumors And explore the etiology. The report is as follows. Materials and Methods Experimental Samples Moldy dried and dried moldy stems taken from high incidence of esophageal cancer Cicheng Dong Guanglu unit, moldy radish from