@incollection{Sun19, author = {Yingli Sun and Ke An and Caiyun Yang}, title = {Circulating Cell-Free DNA}, booktitle = {Liquid Biopsy}, publisher = {IntechOpen}, address = {Rijeka}, year = {2019}, editor = {Ilze Strumfa and Janis Gardovskis}, chapter = {3}, doi = {10.5772/intechopen.80730}, url = {https://doi.org/10.5772/intechopen.80730} }