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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">clinendo</journal-id><journal-title-group><journal-title xml:lang="ru">Клиническая эндоскопия</journal-title><trans-title-group xml:lang="en"><trans-title>Filin’s Clinical endoscopy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2415-7813</issn><publisher><publisher-name>"Global Media technology" Ltd</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">clinendo-482</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>КЛИНИЧЕСКИЕ НАБЛЮДЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL OBSERVATIONS</subject></subj-group></article-categories><title-group><article-title>Ретрофлексия в ректоскопии: рутинное исследование или метод выбора</article-title><trans-title-group xml:lang="en"><trans-title>Retroflexion in rectoscopy: a routine study or method of choice</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Черных</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernikh</surname><given-names>D. A.</given-names></name></name-alternatives><email xlink:type="simple">cher_da@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мяукина</surname><given-names>Л. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Mayukina</surname><given-names>L. M.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Камалов</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kamalov</surname><given-names>E. N.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>ГБУЗ Ленинградская областная клиническая больница</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>09</day><month>12</month><year>2025</year></pub-date><issue>1</issue><fpage>54</fpage><lpage>56</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Черных Д.А., Мяукина Л.М., Камалов Е.Н., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Черных Д.А., Мяукина Л.М., Камалов Е.Н.</copyright-holder><copyright-holder xml:lang="en">Chernikh D.A., Mayukina L.M., Kamalov E.N.</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://clinendo.elpub.ru/jour/article/view/482">https://clinendo.elpub.ru/jour/article/view/482</self-uri></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Waye J.D. 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