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Showing (a) Serum neopterin levels in healthy subjects (HC) and in those with different stages of chronic kidney disease (CKD). P value are as follows: HC versus CKD III, 0.001; HC versus CKD IV, <0.0001; HC versus CKD V, 0.0001; CKD III versus CKD IV, 0.01; CKD III versus CKD V, 0.01 and CKD IV versus CKD V, 0.01, and (b) serum neopterin level in dialysis patients as compared to those nondialysis CKD patients (P < 0.001).
