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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">astmed</journal-id><journal-title-group><journal-title xml:lang="ru">Астраханский медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Astrakhan medical journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1992-6499</issn><publisher><publisher-name>ФГБОУ ВО Астраханский ГМУ Минздрава России</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17021/2020.15.1.6.9</article-id><article-id custom-type="elpub" pub-id-type="custom">astmed-60</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL INVESTIGATIONS</subject></subj-group></article-categories><title-group><article-title></article-title><trans-title-group xml:lang="en"><trans-title>IS PIVKA-II A PROMISING BIOMARKER FOR HEPATOCELLULAR CARCINOMA?</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Broz</surname><given-names>P.</given-names></name></name-alternatives><email xlink:type="simple">brozp@fnplzen.cz</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Svobodova</surname><given-names>S.</given-names></name></name-alternatives><email xlink:type="simple">sarka.svobodova@lf1.cuni.cz</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Karlíkova</surname><given-names>M.</given-names></name></name-alternatives><email xlink:type="simple">karlikovam@fnplzen.cz</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Topolcan</surname><given-names>O.</given-names></name></name-alternatives><email xlink:type="simple">topolcan@fnplzen.cz</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Treska</surname><given-names>V.</given-names></name></name-alternatives><email xlink:type="simple">treska@fnplzen.cz</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Kucera</surname><given-names>R.</given-names></name></name-alternatives><email xlink:type="simple">kucerar@fnplzen.cz</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>University Hospital and Faculty of Medicine in Pilsen, Charles University; Institute of Clinical Biochemistry and Haematology, University Hospital in Pilsen</institution><country>Russian Federation</country></aff><aff xml:lang="en" id="aff-2"><institution>University Hospital and Faculty of Medicine in Pilsen, Charles University</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>27</day><month>02</month><year>2023</year></pub-date><volume>15</volume><issue>1</issue><fpage>6</fpage><lpage>9</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Broz P., Svobodova S., Karlíkova M., Topolcan O., Treska V., Kucera R., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Broz P., Svobodova S., Karlíkova M., Topolcan O., Treska V., Kucera R.</copyright-holder><copyright-holder xml:lang="en">Broz P., Svobodova S., Karlíkova M., Topolcan O., Treska V., Kucera R.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.astmedj.ru/jour/article/view/60">https://www.astmedj.ru/jour/article/view/60</self-uri><trans-abstract xml:lang="en"><p>Aim. To evaluate the clinical contribution of protein induced by vitamin K absence (PIVKA-II) for the diagnosis of hepatocellular carcinoma (HCC). The second aim was to compare PIVKA-II with routinely used alpha-fetoprotein (AFP) for the same indication. Materials and methods. 310 participants were enrolled in our study: 60 with HCC, 40 with liver metastases of colorectal cancer origin, 40 with liver cirrhosis, 20 with pancreatic cancer (PC) and 150 healthy individuals. Serum levels of PIVKA-II were measured using a chemiluminescent assay of the Architect 1000i System (“Abbott”, USA) and AFP levels using a chemiluminescent assay by DxI 800 (“Beckman Coulter”, USA). Serum concentrations of PIVKA-II and AFP were compared between the group with HCC and the other mentioned groups. Results. PIVKA-II achieved better clinical sensitivity in comparison with AFP. PIVKA-II achieved its best sensitivity (96,9 %) in distinguishing between the HCC and control group with the proposed cut-off value of 60 mAU/ml. Conclusion. PIVKA-II can be used alongside routinely established AFP as a valuable marker in the diagnosis of HCC.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>PIVKA-II</kwd><kwd>AFP</kwd><kwd>hepatocellular carcinoma</kwd><kwd>biomarkers</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Asrih M., Jornayvaz F. R. Metabolic syndrome and nonalcoholic fatty liver disease: Is insulin resistance the link? Mol. Cell. Endocrinol., 2015, vol. 418, Pt. 1, pp. 55-65.</mixed-citation><mixed-citation xml:lang="en">Asrih M., Jornayvaz F. R. Metabolic syndrome and nonalcoholic fatty liver disease: Is insulin resistance the link? Mol. Cell. Endocrinol., 2015, vol. 418, Pt. 1, pp. 55-65.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Effendi K., Sakamoto M. Molecular pathology in early hepatocarcinogenesis. Oncology, 2010, vol. 78, no. 2, pp. 157-160.</mixed-citation><mixed-citation xml:lang="en">Effendi K., Sakamoto M. Molecular pathology in early hepatocarcinogenesis. Oncology, 2010, vol. 78, no. 2, pp. 157-160.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">El-Serag H. B. Epidemiology of viral hepatitis and hepatocellular carcinoma. Gastroenterology, 2012, vol. 142, no. 6, pp. 1264-1273.</mixed-citation><mixed-citation xml:lang="en">El-Serag H. B. Epidemiology of viral hepatitis and hepatocellular carcinoma. Gastroenterology, 2012, vol. 142, no. 6, pp. 1264-1273.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Ertle J. M., Heider D., Wichert M., Keller B., Kueper R., Hilgard P., Gerken G., Schlaak J. F. A combination of α-fetoprotein and des-γ-carboxy prothrombin is superior in detection of hepatocellular carcinoma. Digestion, 2013, vol. 87, no. 2, pp. 121-131.</mixed-citation><mixed-citation xml:lang="en">Ertle J. M., Heider D., Wichert M., Keller B., Kueper R., Hilgard P., Gerken G., Schlaak J. F. A combination of α-fetoprotein and des-γ-carboxy prothrombin is superior in detection of hepatocellular carcinoma. Digestion, 2013, vol. 87, no. 2, pp. 121-131.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Jang E. S., Jeong S. H., Kim J.W., Choi Y. S., Leissner P., Brechot C. Diagnostic Performance of Alpha-Fetoprotein, Protein Induced by Vitamin K Absence, Osteopontin, Dickkopf-1 and Its Combinations for Hepatocellular Carcinoma. PLoS One, 2016, vol. 11, no. 3, e0151069. doi: 10.1371/journal.pone.0151069.</mixed-citation><mixed-citation xml:lang="en">Jang E. S., Jeong S. H., Kim J.W., Choi Y. S., Leissner P., Brechot C. Diagnostic Performance of Alpha-Fetoprotein, Protein Induced by Vitamin K Absence, Osteopontin, Dickkopf-1 and Its Combinations for Hepatocellular Carcinoma. PLoS One, 2016, vol. 11, no. 3, e0151069. doi: 10.1371/journal.pone.0151069.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Kucera R., Topolcan O., Fiala O., Kinkorova J., Treska V., Zedníková I., Slouka D., Simanek V., Safanda M., Babuska V. The Role of TPS and TPA in the Diagnostics of Distant Metastases. Anticancer Res., 2016, vol. 36, no. 2, pp. 773-777.</mixed-citation><mixed-citation xml:lang="en">Kucera R., Topolcan O., Fiala O., Kinkorova J., Treska V., Zedníková I., Slouka D., Simanek V., Safanda M., Babuska V. The Role of TPS and TPA in the Diagnostics of Distant Metastases. Anticancer Res., 2016, vol. 36, no. 2, pp. 773-777.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Lefrere J. J., Gozin D. Use of des-gamma-carboxyprothrombin in retrospective diagnosis of hidden intoxication of anticoagulants. J. Clin. Pathol., 1987, vol. 40, no. 5, pp. 589.</mixed-citation><mixed-citation xml:lang="en">Lefrere J. J., Gozin D. Use of des-gamma-carboxyprothrombin in retrospective diagnosis of hidden intoxication of anticoagulants. J. Clin. Pathol., 1987, vol. 40, no. 5, pp. 589.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Ludvík J., Duras P., Třeška V., Matoušková T., Brůha J., Fichtl J., Lysák D., Ferda J., Baxa J. Portal Vein Embolization with Contralateral Application of Stem Cells Facilitates Increase of Future Liver Remnant Volume in Patients with Liver Metastases. Cardiovasc. Intervent. Radiol., 2017, vol. 40, no. 5, pp. 690-696.</mixed-citation><mixed-citation xml:lang="en">Ludvík J., Duras P., Třeška V., Matoušková T., Brůha J., Fichtl J., Lysák D., Ferda J., Baxa J. Portal Vein Embolization with Contralateral Application of Stem Cells Facilitates Increase of Future Liver Remnant Volume in Patients with Liver Metastases. Cardiovasc. Intervent. Radiol., 2017, vol. 40, no. 5, pp. 690-696.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Nakamura S., Nouso K., Sakaguchi K., Ito Y. M., Ohashi Y., Kobayashi Y., Toshikuni N., Tanaka H., Miyake Y., Matsumoto E., Shiratori Y. Sensitivity and specificity of des-gamma-carboxy prothrombin for diagnosis of patients with hepatocellular carcinomas varies according to tumor size. Am. J. Gastroenterol., 2006, vol. 101, no. 9, pp. 2038-2043.</mixed-citation><mixed-citation xml:lang="en">Nakamura S., Nouso K., Sakaguchi K., Ito Y. M., Ohashi Y., Kobayashi Y., Toshikuni N., Tanaka H., Miyake Y., Matsumoto E., Shiratori Y. Sensitivity and specificity of des-gamma-carboxy prothrombin for diagnosis of patients with hepatocellular carcinomas varies according to tumor size. Am. J. Gastroenterol., 2006, vol. 101, no. 9, pp. 2038-2043.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Nguyen-Dinh S. H., Do A., Pham T. N. D., Dao D. Y., Nguy T. N., Chen M. S. Jr. High burden of hepatocellular carcinoma and viral hepatitis in Southern and Central Vietnam: Experience of a large tertiary referral center, 2010 to 2016. World. J. Hepatol., 2018, vol. 10, no. 1, pp. 116-123.</mixed-citation><mixed-citation xml:lang="en">Nguyen-Dinh S. H., Do A., Pham T. N. D., Dao D. Y., Nguy T. N., Chen M. S. Jr. High burden of hepatocellular carcinoma and viral hepatitis in Southern and Central Vietnam: Experience of a large tertiary referral center, 2010 to 2016. World. J. Hepatol., 2018, vol. 10, no. 1, pp. 116-123.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Nomura F., Ishijima M., Kuwa K., Tanaka N., Nakai T., Ohnishi K. Serum des-gamma-carboxy prothrombin levels determined by a new generation of sensitive immunoassays in patients with small-sized hepatocellular carcinoma. Am. J. Gastroenterol., 1999, vol. 94, no. 3, pp. 650-654.</mixed-citation><mixed-citation xml:lang="en">Nomura F., Ishijima M., Kuwa K., Tanaka N., Nakai T., Ohnishi K. Serum des-gamma-carboxy prothrombin levels determined by a new generation of sensitive immunoassays in patients with small-sized hepatocellular carcinoma. Am. J. Gastroenterol., 1999, vol. 94, no. 3, pp. 650-654.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Okuda H., Nakanishi T., Takatsu K., Saito A., Hayashi N., Takasaki K., Takenami K., Yamamoto M., Nakano M. Serum levels of des-gamma-carboxy prothrombin measured using the revised enzyme immunoassay kit with increased sensitivity in relation to clinicopathologic features of solitary hepatocellular carcinoma. Cancer, 2000, vol. 88, no. 3, pp. 544-549.</mixed-citation><mixed-citation xml:lang="en">Okuda H., Nakanishi T., Takatsu K., Saito A., Hayashi N., Takasaki K., Takenami K., Yamamoto M., Nakano M. Serum levels of des-gamma-carboxy prothrombin measured using the revised enzyme immunoassay kit with increased sensitivity in relation to clinicopathologic features of solitary hepatocellular carcinoma. Cancer, 2000, vol. 88, no. 3, pp. 544-549.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Poté N., Cauchy F., Albuquerque M., Voitot H., Belghiti J., Castera L., Puy H., Bedossa P., Paradis V. Performance of PIVKA-II for early hepatocellular carcinoma diagnosis and prediction of microvascular invasion. J. Hepatol., 2015, vol. 62, no. 4, pp. 848-854.</mixed-citation><mixed-citation xml:lang="en">Poté N., Cauchy F., Albuquerque M., Voitot H., Belghiti J., Castera L., Puy H., Bedossa P., Paradis V. Performance of PIVKA-II for early hepatocellular carcinoma diagnosis and prediction of microvascular invasion. J. Hepatol., 2015, vol. 62, no. 4, pp. 848-854.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Seo S. I., Kim H. S., Kim W. J., Shin W. G., Kim D. J., Kim K. H., Jang M. K., Lee J. H., Kim J. S., Kim H. Y., Kim D. J., Lee M. S., Park C. K. Diagnostic value of PIVKA-II and alpha-fetoprotein in hepatitis B virus-associated hepatocellular carcinoma. World J. Gastroenterol., 2015, vol. 21, no. 13, pp. 3928-3935.</mixed-citation><mixed-citation xml:lang="en">Seo S. I., Kim H. S., Kim W. J., Shin W. G., Kim D. J., Kim K. H., Jang M. K., Lee J. H., Kim J. S., Kim H. Y., Kim D. J., Lee M. S., Park C. K. Diagnostic value of PIVKA-II and alpha-fetoprotein in hepatitis B virus-associated hepatocellular carcinoma. World J. Gastroenterol., 2015, vol. 21, no. 13, pp. 3928-3935.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Siegel R. L., Miller K. D., Jemal A. Cancer statistics, 2016. CA Cancer J. Clin., 2016, vol. 66, no. 1, pp. 7-30.</mixed-citation><mixed-citation xml:lang="en">Siegel R. L., Miller K. D., Jemal A. Cancer statistics, 2016. CA Cancer J. Clin., 2016, vol. 66, no. 1, pp. 7-30.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Siriwardana R. C., Niriella M. A., Dassanayake A., Ediriweera D., Gunetilleke B., Sivasundaram T., de Silva J. Association of Serum Ferritin with Diabetes and Alcohol in Patients with Non-Viral Liver Disease-Related Hepatocellular Carcinoma. Liver Cancer, 2017, vol. 6, no. 4, pp. 307-312.</mixed-citation><mixed-citation xml:lang="en">Siriwardana R. C., Niriella M. A., Dassanayake A., Ediriweera D., Gunetilleke B., Sivasundaram T., de Silva J. Association of Serum Ferritin with Diabetes and Alcohol in Patients with Non-Viral Liver Disease-Related Hepatocellular Carcinoma. Liver Cancer, 2017, vol. 6, no. 4, pp. 307-312.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Sultanik P., Ginguay A., Vandame J., Popovici T., Meritet J. F., Cynober L., Pol S., Bories P. N. Diagnostic accuracy of des-gamma-carboxy prothrombin for hepatocellular carcinoma in a French cohort using the Lumipulse® G600 analyzer. J. Viral Hepat., 2017, vol. 24, no. 1, pp. 80-85.</mixed-citation><mixed-citation xml:lang="en">Sultanik P., Ginguay A., Vandame J., Popovici T., Meritet J. F., Cynober L., Pol S., Bories P. N. Diagnostic accuracy of des-gamma-carboxy prothrombin for hepatocellular carcinoma in a French cohort using the Lumipulse® G600 analyzer. J. Viral Hepat., 2017, vol. 24, no. 1, pp. 80-85.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Tartaglione S., Pecorella I., Zarrillo S. R., Granato T., Viggiani V., Manganaro L., Marchese C., Angeloni A., Anastasi E. Protein Induced by Vitamin K Absence II (PIVKA-II) as a potential serological biomarker in pancreatic cancer: a pilot study. Biochem. Med. (Zagreb), 2019, vol. 29, no. 2, pp. 020707.</mixed-citation><mixed-citation xml:lang="en">Tartaglione S., Pecorella I., Zarrillo S. R., Granato T., Viggiani V., Manganaro L., Marchese C., Angeloni A., Anastasi E. Protein Induced by Vitamin K Absence II (PIVKA-II) as a potential serological biomarker in pancreatic cancer: a pilot study. Biochem. Med. (Zagreb), 2019, vol. 29, no. 2, pp. 020707.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Treska V., Fichtl J., Bruha J., Liska V., Kormunda S., Finek J. Liver Resections for Colorectal Metastases in Patients Aged Over 75 Years. Anticancer Res., 2017, vol. 37, no. 3, pp. 1529-1533.</mixed-citation><mixed-citation xml:lang="en">Treska V., Fichtl J., Bruha J., Liska V., Kormunda S., Finek J. Liver Resections for Colorectal Metastases in Patients Aged Over 75 Years. Anticancer Res., 2017, vol. 37, no. 3, pp. 1529-1533.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Viggiani V., Palombi S., Gennarini G., D’Ettorre G., De Vito C., Angeloni A., Frati L., Anastasi E. Protein induced by vitamin K absence or antagonist-II (PIVKA-II) specifically increased in Italian hepatocellular carcinoma patients. Scand. J. Gastroenterol., 2016, vol. 51, no. 10, pp. 1257-1262.</mixed-citation><mixed-citation xml:lang="en">Viggiani V., Palombi S., Gennarini G., D’Ettorre G., De Vito C., Angeloni A., Frati L., Anastasi E. Protein induced by vitamin K absence or antagonist-II (PIVKA-II) specifically increased in Italian hepatocellular carcinoma patients. Scand. J. Gastroenterol., 2016, vol. 51, no. 10, pp. 1257-1262.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Wang X., Zhang W., Liu Y., Gong W., Sun P., Kong X., Yang M., Wang Z. Diagnostic value of prothrombin induced by the absence of vitamin K or antagonist-II (PIVKA-II) for early stage HBV related hepatocellular carcinoma. Infect. Agent. Cancer, 2017, vol. 12. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5569466/ (accessed 16 July 2019).</mixed-citation><mixed-citation xml:lang="en">Wang X., Zhang W., Liu Y., Gong W., Sun P., Kong X., Yang M., Wang Z. Diagnostic value of prothrombin induced by the absence of vitamin K or antagonist-II (PIVKA-II) for early stage HBV related hepatocellular carcinoma. Infect. Agent. Cancer, 2017, vol. 12. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5569466/ (accessed 16 July 2019).</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Yang J. D., Roberts L. R. Hepatocellular carcinoma: A global view. Nat. Rev. Gastroenterol. Hepatol., 2010, vol. 7, no. 8, pp. 448-458.</mixed-citation><mixed-citation xml:lang="en">Yang J. D., Roberts L. R. Hepatocellular carcinoma: A global view. Nat. Rev. Gastroenterol. Hepatol., 2010, vol. 7, no. 8, pp. 448-458.</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Yu R., Ding S., Tan W., Tan S., Tan Z., Xiang S., Zhou Y., Mao Q., Deng G. Performance of Protein Induced by Vitamin K Absence or Antagonist-II (PIVKA-II) for Hepatocellular Carcinoma Screening in Chinese Population. Hepat. Mon. 2015, vol. 15, no. 7. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4539732/ (accessed 16 July 2019).</mixed-citation><mixed-citation xml:lang="en">Yu R., Ding S., Tan W., Tan S., Tan Z., Xiang S., Zhou Y., Mao Q., Deng G. Performance of Protein Induced by Vitamin K Absence or Antagonist-II (PIVKA-II) for Hepatocellular Carcinoma Screening in Chinese Population. Hepat. Mon. 2015, vol. 15, no. 7. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4539732/ (accessed 16 July 2019).</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Zakhary N. I., Khodeer S. M., Shafik H. E., Abdel Malak C. A. Impact of PIVKA-II in diagnosis of hepatocellular carcinoma. J. Adv. Res., 2013, vol. 4, no. 6, pp. 539-546.</mixed-citation><mixed-citation xml:lang="en">Zakhary N. I., Khodeer S. M., Shafik H. E., Abdel Malak C. A. Impact of PIVKA-II in diagnosis of hepatocellular carcinoma. J. Adv. Res., 2013, vol. 4, no. 6, pp. 539-546.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
