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  Indian J Med Microbiol
 

Figure 3: Correlation analysis between TNF-α levels in induced sputum and smoking load in group 2 (r = 0.491, P = 0.028)

Figure 3: Correlation analysis between TNF-α levels in induced sputum and smoking load in group 2 (<i>r</i> = 0.491, <i>P</i> = 0.028)