They concluded that HCC patients could be considered eligible for liver transplantation when satisfying one of the following two points: (a) a total tumor diameter of ≤8 cm, or (b) a total tumor diameter of >8 cm but a histopathologic grade I or II and a preoperative AFP level of ≤400 ng/mL, since the survival curves of patients who met the Hangzhou criteria were statistically equal to those patients who met the Milan criteria [10]. The gene discussed is AFP; the disease is neoplasm.