Liu, X., Guo, W. ., Shi, X. ., Ke, . Y. ., Li, Y., Pan, S. ., Jin, Y., Wang, Y. ., Ruan, Q. . and Ma, H. . (2021) “Construction and verification of prognostic nomogram for early-onset esophageal cancer: nomogram for early onset esophageal cancer”, Bosnian Journal of Basic Medical Sciences, 21(6), pp. 760–772. doi: 10.17305/bjbms.2021.5533.