近年来由于传染病之被控制以至消灭,肿瘤(以下均为恶性肿瘤)及心血管系统疾病则成为疾病死亡的主要原因。据估计,全世界每年死于恶性肿瘤者达数百万人。我因肿瘤发病情况虽还缺乏完整的统计,但仅就最近病理学会收集的38个医学院的尸检统计来看,肿瘤对我国人民健康的危害也是极其严重的(21,706尸检例中有1,979例为恶性肿瘤,占9%)。过去由于人们对肿瘤的原因及生化学了解得很少,不只早期诊断存在着许多困难,治疗上也还缺乏满意的方法,所 In recent years, as infectious diseases have been controlled and eliminated, tumors (hereinafter referred to as malignant tumors) and diseases of the cardiovascular system have become the main cause of disease death. It is estimated that millions of people die from malignant tumors every year in the world. Although I still do not have complete statistics on the incidence of cancer, only the autopsy statistics of 38 medical schools collected by the Institute of Pathology recently showed that the harm of cancer to the health of our people is extremely serious (1,979 of 21,706 autopsy cases were Malignant tumors, accounting for 9%). In the past, because people knew very little about the causes of tumors and their biochemistry, not only were there many difficulties in early diagnosis, but there was also a lack of satisfactory methods for treatment.