[Retracted] Abnormal COX2 Protein Expression May Be Correlated with Poor Prognosis in Oral Cancer: A Meta-Analysis

<table>Subgroup analyses by sample size and detecting method of the relationships of abnormal COX2 protein expression with clinicopathological characteristics and prognosis of patients with oral cancer.</table>

BioMed Research International

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Figure 4

Figure 4: [Retracted] Abnormal COX2 Protein Expression May Be Correlated with Poor Prognosis in Oral Cancer: A Meta-Analysis 