Genetic testing is more commonly used in some malignancies, mainly to guide the application of targeted drugs. The cost of targeted therapy also depends on the type of disease and the type of targeted drug chosen, for example, like lung adenocarcinoma, if there is a genetic mutation in EGFR by genetic testing, you can use Erysal or Troche. The cost of this also varies. The price per box of ERSA is about$2,000, and a course of treatment may cost more than$10,000. The price of each box of Tricor is 1400 RMB for one week, and you need to use 4 boxes in a month. In addition, for lung cancer, other targeted therapies can be considered. For example, if you have ALK mutation, you need to use crizotinib, which is a bit more expensive. There are also some malignant tumors that do not require genetic testing and can be treated with targeted therapy, for example, Apatinib, a small molecule multi-targeted drug, can be used for the treatment of advanced gastric adenocarcinoma, and the cost is about$7,000-8,000 per course of treatment.