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. 2018 Aug 7;9(61):31904–31914. doi: 10.18632/oncotarget.25881

Figure 4. Comparison of cfDNA quality between sodium citrate tubes and cell-stabilizing tubes.

Figure 4

Relative change of cfDNA concentration in blood from five healthy volunteers was calculated as concentration after 72 h storage divided by concentration just after blood collection using sodium citrate tubes, Streck BCT, and PAXgene tubes (A). Statistical analyses were performed with Friedman’s rank test. Size distribution of cfDNA using the 3 kinds of blood collection tubes was analyzed with an Agilent bioanalyzer®; representative examples are shown for sodium citrate tubes (B), Streck BCT tubes (C), and PAXgene tubes (D).