CEACAM8 and gastric cancer: Overall survival (OS) of patients with gastric cancer with low and high densities of cTOB1+, nTOB1+, CD66b+, cTOB1+CD66b+, nTOB1+CD66b+, CD68+, cTOB1+CD68+, and nTOB1+CD68+ cells was analyzed using Kaplan–Meier analysis.