Resection or ablation for very early hepatocellular carcinoma and the fundamental problem of causal inference

cucchetti, alessandro university of bologna - dimec, s.orsola-malpighi hospital - department of medical and surgical sciences, Bologna, Italy , serenari, matteo university of bologna - s.orsola-malpighi hospital - department of internal medicine and surgery (dimec), department of medical and surgical sciences, Bologna, Italy , serenari, matteo university of bologna - s.orsola-malpighi hospital - department of internal medicine and surgery (dimec), department of medical and surgical sciences, Bologna, Italy

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