Figure 4From: The elevation of serum napsin A in idiopathic pulmonary fibrosis, compared with KL-6, surfactant protein-A and surfactant protein-D Distribution of serum napsin A levels in 12 patients with kidney disease and 20 control subjects. Mean level of serum creatinine of all patients with kidney disease was 2.1 ± 1.4 mg/dl. n.s.: not significant.Back to article page