Cao, Guangxin, Yu Xie, Xiaohui Jiang, Xiaofeng Tian, Ding Wang, and Yan Sun. 2019. “Serum Cell-Free DNA Concentrations and Integrity Analysis of Colorectal Cancer Patients before and After Surgery”. Cellular and Molecular Biology 65 (6):44-51. https://doi.org/10.14715/cmb/2019.65.6.8.