DKK1 and hepatocellular carcinoma: Janget al [18] reported that the cutoff and median plasma DKK1 were 500 and 1497.1 (IQR 279.0–782.1) pg/mL in HCC patients, respectively, which are consistent with 550.93 and 1351.89 (IQR 619.68–1171.96) ng/L in our study.