Reply to: The letter to the editor “More details are needed about the use of multicenter propensity score matching analysis” by Feng et al.

We thank Dr.Feng and his colleagues for their interest and thoughtful commentaries on our recently published study on the association between tumor morphology and prognosis of solitary huge hepatocellular carcinoma(HCC)after curative liver resection(1).Based on propensity score matching(PSM)analysis,the present study demonstrated that balloon-shaped HCC(BS-HCC)was independently associated with better overall survival(OS)and recurrence-free survival(RFS)after surgery.