According to WHO, in 2005, 7.6 million people died of cancer worldwide, accounting for 13 percent of the 58 million deaths. Seventy percent of all cancer deaths occurred in middle-income and low-income countries. It is estimated that by 2015, there will be 15 million new cases of malignancy and 9 million deaths worldwide, 2/3 of which will be in developing countries. Whether in developed or developing countries, malignant neoplasm is one of the top three causes of death in people over the age of 5, with a global average risk of cancer of 10% by age 65. In the early 1990s, China had about 1.3 million deaths and an estimated 1.6 million incidences of cancer each year, ranking second in causes of death. 1.4 million deaths and 1.8 million incidences of cancer in China in 2000. The 2012 China Tumor Registry Annual Report released by the National Tumor Registry reported that the annual number of new tumor cases in the country is estimated to be about 3.12 million, with an average of 8,550 people per day and 6 people diagnosed with malignant tumors every minute in the country. The lifetime probability of developing cancer for China’s residents is 22%. The World Bank estimates: the annual medical cost for cancer patients in China is about 80 billion yuan, accounting for 20% of the total health cost, much higher than the medical cost for other chronic diseases. If detected early and treated adequately, 1/3 of cancers can be cured, such as nasopharyngeal cancer, cervical cancer, breast cancer, lymphoma, skin cancer, colon cancer, lung cancer, esophageal cancer and so on.