However, there are other requirements for a potential liver donor: 1) Age - under 50. 2) Healthy liver - no liver disease; HBsAg negative; no active hepatitis; no high blood pressure, arteriosclerosis, or other diseases that might impact the quality of the liver. 3) No tuberculosis. 4) No cancer. 5) No severe infection. 6) Death did not occur long after the donor was in a coma, i.e., the donor had