Correction: No significant relationship exists between tumor size and prognosis in distant metastatic hepatocellular carcinoma: a propensity score matching analysis based on SEER database

更正：基于SEER数据库的倾向评分匹配分析表明，远处转移性肝细胞癌的肿瘤大小与预后之间不存在显著相关性。