https://www.cochrane.org/fr/CD013346/LIVER_echographie-abdominale-et-alpha-foetoproteine-dans-le-cadre-du-diagnostic-du-carcinome 2021 France United Kingdom review of literature french abstract hepatocellular carcinoma, nos alpha fetoprotein Hepatocellular carcinoma no diagnosis ultrasonography ultrasonography, nos diagnosis, ultrasonic alpha-Fetoproteins abdomen, nos carcinoma, hepatocellular