Transarterial Chemoembolization of HCC with Radiopaque Microspheres: Evaluation with Computed Tomography and the Complementary Role of Contrast-Enhanced Ultrasonography - Moschouris, H; Malagari, K; Dimakis, A; Kiakidis, T; Anagnostopoulou, A (Cardiovasc Intervent Radiol, 2020)