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. 2016 Sep 23;52(3):151–158. doi: 10.4068/cmj.2016.52.3.151

FIG. 2. Circulating cell-free tumor DNA exist in the blood in various forms, and could provide information such as mutations, DNA integrity, methylation, viral DNA, and microsatellite alterations. Reprinted by permission from Macmillan Publishers Ltd: Nature Reviews Cancer 11: 426-437, copyright (2011).

FIG. 2