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Figure 2 | BMC Medical Genetics

Figure 2

From: Differences in serum SP-D levels between German and Japanese subjects are associated with SFTPDgene polymorphisms

Figure 2

Comparison of serum SP-A and SP-D levels between the cohorts. (A) Serum SP-A and (B) SP-D levels in German and Japanese cohorts. Receiver operating characteristic (ROC) curves of (C) serum SP-A and (D) SP-D in German (left panel) and Japanese (right panel) cohorts. The horizontal bars represent the mean values. The significance level was defined α = 0.013 (four comparisons in four groups). ***p < 0.001, **p < 0.013 (Mann–Whitney U-test).

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BMC Medical Genetics

ISSN: 1471-2350

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