世界卫生组织指出,癌症是导致人类死亡的一个主要原因,每年全球有700多万人因癌症死亡。随着我国人口老龄化和城市化、工业化进程的加快以及社会、环境和生活方式的快速变化,癌症已成为危害我国居民生命和健康的最重要慢性病之一。全国第3次全死因调查结果显示,癌症位居全死因第二位; The World Health Organization pointed out that cancer is a major cause of human death. Every year, more than 7 million people worldwide die of cancer. With the aging of our population, the acceleration of urbanization, the process of industrialization, and the rapid changes in society, environment, and lifestyle, cancer has become one of the most important chronic diseases that endanger the lives and health of our residents. According to the results of the third national death cause survey, cancer ranks second in all causes of death;