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Table 1 Mean and standard deviation of saliva and serum in OPML group

From: Salivary and serum expression of TNF-α and Ki-67 in oral potentially malignant lesions

OPML Saliva Serum
N 25 25
Mean 247.92 177.33
SD 78.34 83.94
P value 0.03*  
r(P) 0.68 (0.001*)