About the principle of treatment, before this, it is not convenient to say without the consent of the partner. Now we can report to you, and we hope that the industry will criticize and correct us for further improvement. The clinical research of stem cell therapy has been widely conducted internationally, and you can search online if you are interested. It is not as fearful as some people make it out to be. We use umbilical cord mesenchymal stem cells, which are taken from the umbilical cord of a healthy mother during delivery. It has two major characteristics: 1. It is immunomodulatory: it has been used in the Department of Hematology of the First Affiliated Hospital of Soochow University, a national key discipline, for the treatment of acute rejection reaction after bone marrow transplantation. 2. Potential differentiation ability: it can be directed to differentiate into the corresponding tissue cells at the site of injury. There have been many successful reports in this regard. The accumulation of copper in hepatocytes of patients with Wilson’s disease to a certain extent will cause necrosis of hepatocytes, which will develop into cirrhosis in a long time. By focusing on stem cells through the hepatic artery in a fraction of the time, some of the stem cells will differentiate into hepatocytes in the local microenvironment of the liver and play a reparative role. These hepatocytes differentiated from exogenous stem cells are genetically normal and can metabolize copper and produce copper cyanobactin. However, the number of cells that can be infused at one time is limited, so the stem cells are infused repeatedly in separate sessions. Let the normal hepatocytes in the liver become more and more abundant. Then it is possible to solve the problem of copper metabolism.