 For example, the risk of dying under the cardiogram under force is 1 out of 10,000. The risk of dying under the catheter is 1 out of 1,000. The risk of dying with the bypass is, for example, 10 out of 1,000 or 20 out of 1,000. So it changes, it changes a lot. Once I do all this, then it is determined whether the patient needs the stent and whether the patient needs the bypass or does not need either of the two.