Correction: No significant relationship exists between tumor size and prognosis in distant metastatic hepatocellular carcinoma: a propensity score matching analysis based on SEER database - Jun Xie; Chunyao Zheng; Jinliang Xie; Fangfei Wang; Dingwei Liu; Rong Zeng; Chensong Yu; Sihai Chen (BMC Gastroenterology, 2022)