CD68 and neoplasm: However, we did not find that the expression of CD68 and CD163 was correlated with tumor stage (T1 to T3) or pathological grade (G I to G III; P > 0.05; Supplementary Figure 1 (see Supplementary Material available online at http://dx.doi.org/10.1155/2014/838632) in our research, and a large sample of OSCC tissues with follow-up will be collected to further confirm the correlation between CD68 and CD163 with tumor stage and pathological grade.