Surgical approach to microwave and radiofrequency liver ablation for hepatocellular carcinoma and colorectal liver metastases less than 5�cm: a systematic review and meta-analysis.

Abdalla M, Collings AT, Dirks R, Onkendi E, Nelson D, Ozair A, Miraflor E, Rahman F, Whiteside J, Shah MM, Ayloo S, Abou-Setta A, Sucandy I, Kchaou A, Douglas S, Polanco P, Vreeland T, Buell J, Ansari MT, Pryor AD, Slater BJ, Awad Z, Richardson W, Alseidi A, Jeyarajah DR, Ceppa E