Liver transplantation for the treatment of small hepatocellular carcinomas in patients with cirrhosis. - Mazzaferro,V.; Regalia,E.; Doci,R.; Andreola,S.; Pulvirenti,A.; Bozzetti,F.; Montalto,F.; Ammatuna,M.; Morabito,A.; Gennari,L. (N Engl J Med, 1996)