Clinical outcomes of surgical resection versus radiofrequency ablation in very-early‐stage hepatocellular carcinoma: a propensity score matching analysis oleh Yuan-Chen Li, Ping-Hung Chen, Jen-Hao Yeh, Pojen Hsiao, Gin-Ho Lo, TaoQian Tan, Pin-Nan Cheng, Hung-Yu Lin, Yaw-Sen Chen, Kun-Chou Hsieh, Pei-Min Hsieh, Chih-Wen Lin