title: Retraction: Cheng B-Q, et al. Chemoembolization combined with radiofrequency ablation for patients with hepatocellular carcinoma larger than 3 cm: a randomized controlled trial. JAMA. 2008;299(14):1669-1677.
authors.forename: Catherine D
authors.initials: CD
authors.lastname: DeAngelis
authors.forename: Phil B
authors.initials: PB
authors.lastname: Fontanarosa