A multicenter retrospective study on the role of lesion size and vascular invasion in the prognosis of hepatocellular carcinoma. Issue 2 (February 2023) - Contis, John; Lykoudis, Panagis M.; Bramis, Konstantinos; Nastos, Konstantinos; Flamourakis, Konstantinos; Memos, Nikolaos; Konstantoulakis, Manousos