Average ages of the esophageal carcinoma patients and references with SXCI defined by CR ≥ 3 (filled bar) and without SXCI (empty bar). Their standard deviations denoted on each bars. The differences in both the control and patient groups are statistically significant, with their P values below 0.05 and 0.005, respectively.
Li et al. Diagnostic Pathology 2013 8:55 doi:10.1186/1746-1596-8-55