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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Tumors of female reproductive system</journal-id><journal-title-group><journal-title xml:lang="en">Tumors of female reproductive system</journal-title><trans-title-group xml:lang="ru"><trans-title>Опухоли женской репродуктивной системы</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1994-4098</issn><issn publication-format="electronic">1999-8627</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1246</article-id><article-id pub-id-type="doi">10.17650/1994-4098-2024-16-2-134-143</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>GYNECOLOGY. CLINICAL CASE</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ГИНЕКОЛОГИЯ. КЛИНИЧЕСКИЙ СЛУЧАЙ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Background and precancerous diseases of the endometrium during pregnancy</article-title><trans-title-group xml:lang="ru"><trans-title>Фоновые и предраковые заболевания эндометрия на фоне беременности</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8194-2811</contrib-id><name-alternatives><name xml:lang="en"><surname>Chernyshova</surname><given-names>A. L.</given-names></name><name xml:lang="ru"><surname>Чернышова</surname><given-names>А. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Alena Leonidovna Chernyshova</p><p>15 Rechkunovskaya St., Novosibirsk 630055; 5 Kooperativnyy Pereulok, Tomsk 634009</p></bio><bio xml:lang="ru"><p>Алена Леонидовна Чернышова</p><p>630055 Новосибирск, ул. Речкуновская, 15; 634009 Томск, Кооперативный переулок, 5</p></bio><email>alacher@list.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6562-7574</contrib-id><name-alternatives><name xml:lang="en"><surname>Dil</surname><given-names>O. S.</given-names></name><name xml:lang="ru"><surname>Диль</surname><given-names>О. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>15 Rechkunovskaya St., Novosibirsk 630055; 5 Kooperativnyy Pereulok, Tomsk 634009</p></bio><bio xml:lang="ru"><p>630055 Новосибирск, ул. Речкуновская, 15; 634009 Томск, Кооперативный переулок, 5</p></bio><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0829-0340</contrib-id><name-alternatives><name xml:lang="en"><surname>Chernyakov</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Черняков</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Аleksandr Alekseecich Chernyakov</p><p>15 Rechkunovskaya St., Novosibirsk 630055; 5 Kooperativnyy Pereulok, Tomsk 634009</p></bio><bio xml:lang="ru"><p>Александр Алексеевич Черняков</p><p>630055 Новосибирск, ул. Речкуновская, 15; 634009 Томск, Кооперативный переулок, 5</p></bio><email>a.cherniackow@yandex.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5926-2601</contrib-id><name-alternatives><name xml:lang="en"><surname>Truschuk</surname><given-names>Yu. M.</given-names></name><name xml:lang="ru"><surname>Трущук</surname><given-names>Ю. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>5 Kooperativnyy Pereulok, Tomsk 634009</p></bio><bio xml:lang="ru"><p>634009 Томск, Кооперативный переулок, 5</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Antipov</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Антипов</surname><given-names>В. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>15 Rechkunovskaya St., Novosibirsk 630055</p></bio><bio xml:lang="ru"><p>630055 Новосибирск, ул. Речкуновская, 15</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Arkhipova</surname><given-names>Ya. I.</given-names></name><name xml:lang="ru"><surname>Архипова</surname><given-names>Я. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>2 Moskovskiy Trakt, Tomsk 634050</p></bio><bio xml:lang="ru"><p>634050 Томск, Московский тракт, 2</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Chernyshova</surname><given-names>A. Е.</given-names></name><name xml:lang="ru"><surname>Чернышова</surname><given-names>А. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>7–9 Universitetskaya Naberezhnaya, Saint Petersburg 199034</p></bio><bio xml:lang="ru"><p>199034 Санкт-Петербург, Университетская набережная, 7–9</p></bio><xref ref-type="aff" rid="aff4"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">E.N. Meshalkin National Medical Research Center, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский центр им. акад. Е.Н. Мешалкина» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Oncology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Научно-исследовательский институт онкологии ФГБНУ «Томский национальный исследовательский медицинский центр Российской академии наук»</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Siberian State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ ВО «Сибирский государственный медицинский университет» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Saint Petersburg State University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Санкт-Петербургский государственный университет»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-07-29" publication-format="electronic"><day>29</day><month>07</month><year>2024</year></pub-date><volume>20</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>134</fpage><lpage>143</lpage><history><date date-type="received" iso-8601-date="2024-07-29"><day>29</day><month>07</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-07-29"><day>29</day><month>07</month><year>2024</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://ojrs.abvpress.ru/ojrs/article/view/1246">https://ojrs.abvpress.ru/ojrs/article/view/1246</self-uri><abstract xml:lang="en"><p>The article presents an analysis of the current state of the problem of background and precancerous diseases of the endometrium. The issues of etiology and pathogenesis of these conditions are reflected, as well as the features and difficulties of diagnosis, treatment and course in patients with pregnancy are presented. The experience of the Tomsk Oncology Research Institute in the treatment of this pathology is presented, as well as clinical cases that clearly demonstrate the possibility of successful treatment of both endometrioid intraepithelial neoplasia and initial uterine body cancer. It should be noted that the results of treatment of this category of patients are quite good, as well as the expediency of careful dynamic monitoring of this category of patients and the possibility of collegial decision-making in determining treatment tactics at all stages of therapy.</p></abstract><trans-abstract xml:lang="ru"><p>В статье представлен анализ современного состояния проблемы фоновых и предраковых заболеваний эндометрия. Отражены вопросы этиологии и патогенеза данных состояний, а также особенности и сложности их диагностики, лечения и течения у больных на фоне беременности. Представлен опыт НИИ онкологии Томского национального исследовательского медицинского центра РАН в лечении данных патологий, а также клинические случаи, которые наглядно демонстрируют возможность успешного лечения как эндометриоидной интраэпителиальной неоплазии, так и начального рака тела матки. Следует отметить достаточно хорошие результаты лечения, а также целесообразность тщательного динамического наблюдения за данной категорией больных и возможность коллегиального принятия решений при определении тактики лечения на всех этапах проводимой терапии.</p></trans-abstract><kwd-group xml:lang="en"><kwd>endometrial hyperplasia</kwd><kwd>endometrial cancer</kwd><kwd>pregnancy</kwd><kwd>diagnosis</kwd><kwd>treatment</kwd><kwd>prognosis</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>гиперплазия эндометрия</kwd><kwd>рак эндометрия</kwd><kwd>беременность</kwd><kwd>диагностика</kwd><kwd>лечение</kwd><kwd>прогноз</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The work was performed without external funding.</funding-statement><funding-statement xml:lang="ru">Работа выполнена без спонсорской поддержки.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Duska L.R., Garrett A., Rueda B.R. et al. Endometrial cancer in women 40 years old or younger. Gynecol Oncol 2001;83(2): 388–93. DOI: 10.1006/gyno.2001.6434</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Cancer Stat Facts: Uterine Cancer. Available at: https://seer.cancer.gov/statfacts/html/corp.html.</mixed-citation></ref><ref id="B3"><label>3.</label><citation-alternatives><mixed-citation xml:lang="en">State of oncological care in Russia in 2021. Eds.: А.D. Kaprin, V.V. Starinskiy, A.O. Shachzadova. Moscow: MNIOI im. P.A. Gertsena – filial FGBU “NMITS radiologii” Minzdrava Rossii, 2022. 239 p. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Состояние онкологической помощи населению России в 2021 году. Под ред. A.Д. Кaпринa, В.В. Стaринского, A.О. Шaхзaдовой. М.: МНИОИ им. П.A. Герценa – филиaл ФГБУ «НМИЦ рaдиологии» Минздрaвa России, 2022. 239 с.</mixed-citation></citation-alternatives></ref><ref id="B4"><label>4.</label><mixed-citation>Setiawan V.W., Yang H., Pike M. et al. Type I and II endometrial cancers: Have they different risk factors? J Clin Oncol 2013;31(20):2607–18. DOI: 10.1200/JCO.2012.48.2596</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Brinton L.A., Felix A.S., McMeekin D.S. et al. Etiologic heterogeneity in endometrial cancer: Evidence from a Gynecologic Oncology Group trial. Gynecol Oncol 2013;129(2):277–84. DOI: 10.1016/j.ygyno.2013.02.023</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Nees L.K., Heublein S., Steinmacher S. et al. Endometrial hyperplasia as a risk factor of endometrial cancer. Arch Gynecol Obstet 2022;306(2):407–21. DOI: 10.1007/s00404-021-06380-5</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Gunderson C.C., Fader A.N., Carson K.A., Bristow R.E. Oncologic and reproductive outcomes with progestin therapy in women with endometrial hyperplasia and grade 1 adenocarcinoma: A systematic review. Gynecol Oncol 2012;125(2):477–82. DOI: 10.1016/j.ygyno.2012.01.003</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Kurman R.J., Kaminski P.F., Norris H.J. The behavior of endometrial hyperplasia. A long-term study of “untreated” hyperplasia in 170 patients. Cancer 1985;56:403–12. DOI: 1002/1097-0142(19850715)56:23.0.co;2-x</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Lacey J.V.Jr., Chia V.M., Rush B.B. et al. Incidence rates of endometrial hyperplasia, endometrial cancer and hysterectomy from 1980 to 2003 within a large prepaid health plan. Int J Cancer 2012;131:1921–9. DOI: 1002/ijc.27457</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Lacey J.V., Sherman M.E., Rush B.B. et al. Absolute risk of endometrial carcinoma during 20-year follow-up among women with endometrial hyperplasia. J Clin Oncol 2010;28(5):788–92.</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Trimble C.L., Method M., Leitao M. et al. Management of endometrial precancers. Obstet Gynecol 2012 ;120(5):1160–75. DOI: 10.1097/aog.0b013e31826bb121</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Reed S.D., Voigt L.F., Newton K.M. et al. Progestin therapy of complex endometrial hyperplasia with and without atypia. Obstet Gynecol 2009;113(3):655–62.</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Montz F.J., Bristow R.E., Bovicelli A. et al. Intrauterine progesterone treatment of early endometrial cancer. Am J Obstet Gynecol 2002;186(4):651–7.</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Dhar K.K., Needhi Rajan T., Koslowski M., Woolas R.P. Is levonorgestrel intrauterine system effective for treatment of early endometrial cancer? Report of four cases and review of the literature. Gynecol Oncol 2005;97(3):924–7.</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>McCawley G.M., Ferriss J.S., Geffel D. et al. Cancer in obese women: Potential protective impact of bariatric surgery. J Am Coll Surg 2009;208(6):1093–8.</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Alonso S., Castellanos T., Lapuente F., Chiva L. Hysteroscopic surgery for conservative management in endometrial cancer: a review of the literature. Ecancermedicalscience 2015;9:505.</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Wildemeersch D., Dhont M. Treatment of nonatypical and atypical endometrial hyperplasia with a levonorgestrel-releasing intrauterine system. Am J Obstet Gynecol 2003;188(5):1297–8.</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Gunderson C.C., Fader A.N., Carson K.A., Bristow R.E. Oncologic and reproductive outcomes with progestin therapy in women with endometrial hyperplasia and grade 1 adenocarcinoma: A systematic review. Gynecol Oncol 2012;125(2):477–82. DOI: 10.1016/j.ygyno.2012.01.003</mixed-citation></ref><ref id="B19"><label>19.</label><citation-alternatives><mixed-citation xml:lang="en">Chernysheva A.L., Kolomiets L.A., Kritskaya N.G., Sukhodolo I.V. Prognostic criteria of oncological risk in endometrial proliferative processes. Rossiyskiy onkologicheskiy zhurnal = Russian Journal of Oncology 2005;(3):22–5. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Чернышева А.Л., Коломиец Л.А., Крицкая Н.Г., Суходоло И.В. Прогностические критерии онкологического риска при пролиферативных процессах эндометрия. Российский онкологический журнал 2005;(3):22–5.</mixed-citation></citation-alternatives></ref><ref id="B20"><label>20.</label><mixed-citation>Pashov A.I., Tskhay V.B., Ionouchene S.V. The combined GnRHagonist and intrauterine levonorgestrel-releasing system treatment of complicated atypical hyperplasia and endometrial cancer: A pilot study. Gynecol Endocrinol 2012;28:559–61. DOI: 10.3109/09513590.2011.649813</mixed-citation></ref><ref id="B21"><label>21.</label><mixed-citation>Novikova O.V., Nosov V.B., Panov V.A. et al. Live births and maintenance with levonorgestrel IUD improve disease-free survival after fertility-sparing treatment of atypical hyperplasia and early endometrial cancer. Gynecol Oncol 2021;161:152–9. DOI: 10.1016/j.ygyno.2021.01.001</mixed-citation></ref><ref id="B22"><label>22.</label><mixed-citation>Chae-Kim J., Garg G., Gavrilova-Jordan L. et al. Outcomes of women treated with progestin and metformin for atypical endometrial hyperplasia and early endometrial cancer: A systematic review and meta-analysis. Int J Gynecol Cancer 2021;31:1499–505. DOI: 10.1136/ijgc-2021-002699</mixed-citation></ref><ref id="B23"><label>23.</label><mixed-citation>Cho H.H., Kim M.R., Kim J.H. Outpatient multimodality management of large submucosal myomas using transvaginal radiofrequency myolysis. J Minim Invasive Gynecol 2014;21: 1049–54. DOI: 10.1016/j.jmig.2014.04.019.</mixed-citation></ref><ref id="B24"><label>24.</label><mixed-citation>Prodromidou A., Lekka S., Fotiou A. et al. The evolving role of targeted metformin administration for the prevention and treatment of endometrial cancer: A systematic review and meta-analysis of randomized controlled trials. J Gynecol Obstet Hum Reprod 2021;50:102164. DOI: 10.1016/j.jogoh.2021.102164.</mixed-citation></ref><ref id="B25"><label>25.</label><mixed-citation>Matsuo K., Mandelbaum R.S., Ciccone M. et al. Route-Specific association of progestin therapy and concurrent metformin use in obese women with complex atypical hyperplasia. Int J Gynecol Cancer 2020;30:1–9. DOI: 10.1136/ijgc-2020-001362</mixed-citation></ref><ref id="B26"><label>26.</label><mixed-citation>Abu Hashim H., Ghayaty E., El Rakhawy M. Levonorgestrelreleasing intrauterine system vs oral progestins for non-atypical endometrial hyperplasia: A systematic review and metaanalysis of randomized trials. Am J Obstet Gynecol 2015;213(4):469–78.</mixed-citation></ref><ref id="B27"><label>27.</label><mixed-citation>Fan Z., Li H., Hu R. et al. Fertility-preserving treatment in young women with grade 1 presumed stage Ia endometrial adenocarcinoma: A meta-analysis. Int J Gynecol Cancer 2018;28:385– 93. DOI: 10.1097/IGC.0000000000001164</mixed-citation></ref><ref id="B28"><label>28.</label><mixed-citation>Wei J., Zhang W., Feng L., Gao W. Comparison of fertility-sparing treatments in patients with early endometrial cancer and atypical complex hyperplasia: A meta-analysis and systematic review. Medicine 2017;96:e8034. DOI: 10.1097/MD.0000000000008034</mixed-citation></ref><ref id="B29"><label>29.</label><citation-alternatives><mixed-citation xml:lang="en">Chernyshova A.L., Kolomiets L.A., Sinilkin I.G. et al. Optimization of approaches to choosing the volume of surgical treatment in patients with cervical cancer (the role of sentinel lymph node research). Voprosy onkologii = Oncology Issues 2016;62(6):807–11. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Чернышова A.Л., Коломиец Л.А., Синилкин И.Г. и др. Оптимизация подходов к выбору объема хирургического лечения у больных раком шейки матки (роль исследования сторожевых лимфоузлов). Вопросы онкологии 2016;62(6):807–11.</mixed-citation></citation-alternatives></ref><ref id="B30"><label>30.</label><mixed-citation>Yunusova N.V., Kondakova I.V., Kolomiets L.A. et al. Molecular targets for the therapy of cancer associated with metabolic syndrome (transcription and growth factors). Asia-Pacific J Clin Oncol 2018;14(3):134–40. DOI: 10.1111/ajco.12780</mixed-citation></ref><ref id="B31"><label>31.</label><citation-alternatives><mixed-citation xml:lang="en">Kukharev D.Yu., Savitskaya V.M., Kostrova E.V. et al. Features of the course of pregnancy with cervical dysplasia. Identification of significant risk factors. Molodoy uchenyy = Young Scientist 2018;14(200):133, 134. Available at: https://moluch.ru/archive/200/49200/. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Кухарев Д.Ю., Савицкая В.М., Кострова Е.В. и др. Особенности течения беременности при дисплазии шейки матки. Определение значимых факторов риска. Молодой ученый 2018;14(200):133, 134. Доступно по: https://moluch.ru/archive/200/49200/.</mixed-citation></citation-alternatives></ref><ref id="B32"><label>32.</label><mixed-citation>Suchonska B., Gajewska M., Madej A., Wielgoś M. Cervical intraepithelial neoplasia during pregnancy. Indian J Cancer 2020;57(1):31–5. DOI: 10.4103/ijc.IJC_403_18</mixed-citation></ref><ref id="B33"><label>33.</label><citation-alternatives><mixed-citation xml:lang="en">Korolenkova L.I., Bryuzgin V.V., Bryuzgin V.V. Severe cervical intraepithelial neoplasia (CIN 2–3/pre-invasive cancer) and cervical microcarcinoma in pregnant women. Akusherstvo i ginekologiya = Obstetrics and Gynecology 2011;(5):68–73. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Короленкова Л.И., Брюзгин В.В., Брюзгин В.В. Тяжелые цервикальные интраэпителиальные неоплазии (CIN 2–3/преинвазивный рак) и микрокарцинома шейки матки у беременных. Акушерство и гинекология 2011;(5):68–73.</mixed-citation></citation-alternatives></ref><ref id="B34"><label>34.</label><mixed-citation>Tirone N.R., Campos C.G., Ferreira K.J.A. et al. Pathways of IFN-alpha activation in patients with cervical intraepithelial neoplasia (CIN). Rev Bras Ginecol Obstet 2021;43(9):682–9. DOI: 10.1055/s-0041-1735301</mixed-citation></ref><ref id="B35"><label>35.</label><citation-alternatives><mixed-citation xml:lang="en">Yakovleva O.V., Glukhova T.N., Rogozhina I.E., Skupova I.N. Pregnancy and cervical intraepithelial neoplasia of the cervix (review). Saratovskiy nauchno-meditsinskiy zhurnal = Saratov Scientific and Medical Journal 2019;15(1):19–23. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Яковлева О.В., Глухова Т.Н., Рогожина И.Е., Скупова И.Н. Беременность и цервикальная интраэпителиальная неоплазия шейки матки (обзор). Саратовский научно-медицинский журнал 2019;15(1):19–23.</mixed-citation></citation-alternatives></ref></ref-list></back></article>
