1. The Diagnostic Value of Serum PIVKA-II Alone or in Combination with AFP in Chinese Hepatocellular Carcinoma Patients
   Fei Xu et al, 2021, Disease Markers CrossRef
2. Real impact of tumor marker AFP and PIVKA-II in detecting very small hepatocellular carcinoma (≤ 2 cm, Barcelona stage 0) - assessment with large number of cases
   Kazuo Tarao et al, 2020, World Journal of Hepatology CrossRef
3. Progression of Prothrombin Induced by Vitamin K Absence-II in Hepatocellular Carcinoma
   Yang Yang et al, 2021, Frontiers in Oncology CrossRef
4. Utility of combining PIVKA-II and AFP in the surveillance and monitoring of hepatocellular carcinoma in the Asia-Pacific region
   Do Young Kim et al, 2023, Clinical and Molecular Hepatology CrossRef