This classification has been endorsed by an EASL panel of experts and the AASLD guidelines ( 7 , 8 ) and has been externally validated in European and American patient cohorts ( 10 , 11 ).

• 该分类标准得到了欧洲肝脏研究协会专家组和美国肝脏病研究协会指南的支持，并且在欧洲和美国的肝癌患者群体中得到了有效的验证。