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Barcelona Clinic Liver Cancer staging system. CTP Child-Turcotte-Pugh class; HCC Hepatocellular carcinoma; M Metastases; mo Months; N Lymph node; PEI Percutaneous ethanol injection; PS Performance status; PV Portal vein; RCTs Randomized controlled trials; RFA Radiofrequency ablation; TACE Transarterial chemoembolization; yr Year. Adapted with permission from reference 9
