Stereotactic body radiation therapy versus radiofrequency ablation for single small hepatocellular carcinoma: a propensity-score matching analysis of their impact on liver function and clinical outcomes

Masayuki Ueno, Hiroyuki Takabatake, Satoshi Itasaka, Takahisa Kayahara, Youichi Morimoto, Hiroshi Yamamoto, Motowo Mizuno