Colli  A, Nadarevic  T, Miletic  D, Giljaca  V, Fraquelli  M, Štimac  D, Casazza  G. Abdominal ultrasound and alpha‐foetoprotein for the diagnosis of hepatocellular carcinoma in adults with chronic liver disease. Cochrane Database of Systematic Reviews 2021, Issue 4. Art. No.: CD013346. DOI: 10.1002/14651858.CD013346.pub2. Accessed 22 April 2021.