Laparoscopic resection vs open resection vs radiofrequency ablation for single hepatocellular carcinoma (< 5cm) in elderly cirrhotic patient: a multicentric study. (September 2018) - Memeo, R.; Ratti, F.; Gelli, M.; Cherkaoui, Z.; Piardi, T.; di Benedetto, F.; Pessaux, P.; Cherqui, D.; Aldrighetti, L.; Lupo, L.