A：

1. Our product is based upon transient elastography that measures the physical stiffness. The level of liver fibrosis depends on the stiffness of liver tissues. And the transient elastography just measures the liver stiffness.

2. Now a great deal of clinical research literature and some criteria on non-invasive liver fibrosis diagnosis actually discuss the relationship between liver elasticity value and level of liver fibrosis. And all guidelines refer to the transient elastography. 

3. Furthermore, our technology assures an accurate measurement of elasticity, when comparing the measured result to that obtained from elastic phantoms of same stiffness standard or similar products on the market.