Radwan, N., H. Abdelkhalik, D. Elgayar, and M. Elsharkawy. “Study the Role of Cell Free DNA in the Diagnosis of Hepatocellular Carcinoma, an Egyptian Study”. Asian Pacific Journal of Cancer Biology, Vol. 7, no. 1, Feb. 2022, pp. 3-8, doi:10.31557/apjcb.2022.7.1.3-8.