The presence of lier metastasis and low serum albumin leels were the most powerful aderse prognostic factors, and the researchers deeloped and alidated a refined prognosis model using these factors.

• 肝转移和低白蛋白血症是最重要的负性预后影响因子，研究人员运用这些因子，建立和验证了一个预后预测模型。