Portal Venous and Hepatic Arterial Coefficients Predict Post-Hepatectomy Overall and Recurrence-Free Survival in Patients with Hepatocellular Carcinoma: A Retrospective Study oleh Li YK, Wu S, Wu YS, Zhang WH, Wang Y, Li YH, Kang Q, Huang SQ, Zheng K, Jiang GM, Wang QB, Liang YB, Li J, Lakang Y, Yang C, Li J, Wang JP, Kui X, Ke Y