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| Institution (Ref.) | Number | Size (cm) | Tumor marker |
|---|---|---|---|
| Tokyo Univ. (15) | ≤ 5 | ≤ 5 | Any |
| Kyoto Univ. (16) | ≤ 10 | ≤ 5 | DCP ≤ 400 |
| Kyushu Univ. after 2007 (17) | Any | ≤ 5 | or DCP ≤ 300 |
| Kyoto Univ. before 2006 (16) | Any | Any | Any |
| All-Japan (18) | ≤ 5 | ≤ 5 | AFP ≤ 500 |
*Exclusion of HCC with vascular invasion and extrahepatic disease is consistent among all of the expanded criteria. AFP: alpha-fetoprotein; DCP, des-gamma-carboxy prothrombin.
