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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">gyroscopy</journal-id><journal-title-group><journal-title xml:lang="ru">Гироскопия и навигация</journal-title><trans-title-group xml:lang="en"><trans-title>Giroskopiya i Navigatsiya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0869-7035</issn><issn pub-type="epub">2075-0927</issn><publisher><publisher-name>AO «Концерн «ЦНИИ «Электроприбор»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17285/0869-7035.0001</article-id><article-id custom-type="elpub" pub-id-type="custom">gyroscopy-253</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Сравнительный анализ алгоритмов комплексирования в слабосвязанной инерциально-спутниковой системе на основе обработки реальных данных</article-title><trans-title-group xml:lang="en"><trans-title>Comparative Analysis of Fusion Algorithms in a Loosely-Coupled Integrated Navigation System on the Basis of Real Data Processing</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>Аль Битар</surname><given-names>Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Al Bitar</surname><given-names>N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аль Битар Надер. Аспирант кафедры «Системы автоматического управления»</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гаврилов</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Gavrilov</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гаврилов Александр Игоревич. Кандидат технических наук, доцент кафедры «Системы автоматического управления»</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>МГТУ им. Н.Э. Баумана (Москва).</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bauman Moscow State Technical University, Moscow, Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>17</day><month>11</month><year>2025</year></pub-date><volume>27</volume><issue>3</issue><fpage>31</fpage><lpage>52</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Аль Битар Н., Гаврилов А.И., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Аль Битар Н., Гаврилов А.И.</copyright-holder><copyright-holder xml:lang="en">Al Bitar N., Gavrilov A.I.</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.gyroscopy.ru/jour/article/view/253">https://www.gyroscopy.ru/jour/article/view/253</self-uri><abstract><p>В статье выполнен сравнительный анализ эффективности применения расширенного фильтра Калмана (ФК) и сигма-точечного ФК в задаче интеграции БИНС/СНС на основе слабосвязанной схемы комплексирования. Использованы полные стохастические модели измерений инерциальных датчиков на базе МЭМС-технологии. Проверена эффективность расширенного ФК и сигма-точечного ФК на основе реальных экспериментальных данных для сложного движения, полученных с использованием БИНС на базе МЭМС-технологии и приемника СНС с двойной антенной. Произведена оценка точности определения навигационных параметров с использованием алгоритмов расширенного ФК и сигма-точечного ФК при наличии и отсутствии сигнала СНС. Приведены результаты статистического анализа погрешностей оценивания навигационных параметров для разных периодов отключений сигнала СНС.</p></abstract><trans-abstract xml:lang="en"><p>The paper presents a comparative analysis of the extended Kalman filter (EKF) and the sigma-point Kalman filter (SPKF) applied to solve the problem of SINS/GNSS integration based on a loosely-coupled integration scheme. Complete stochastic measurement models of MEMS inertial sensors are considered. The efficiency of the EKF and the SPKF is evaluated using real experimental data on complex motion from an SINS based on MEMS technology and a GNSS receiver with a double antenna. The estimation accuracy of navigation parameters using the EKF and the SPKF in the presence of the GNSS signal and during the GNSS outages is analyzed. The results of the statistical analysis of the errors in estimating navigation parameters for different periods of GNSS signal outage are considered.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Бесплатформенные инерциальные навигационные системы</kwd><kwd>спутниковые навигационные системы</kwd><kwd>сигматочечный фильтр Калмана</kwd><kwd>расширенный фильтр Калмана</kwd><kwd>МЭМС.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Strapdown inertial navigation systems</kwd><kwd>satellite navigation systems</kwd><kwd>sigma-point Kalman filter</kwd><kwd>extended Kalman filter</kwd><kwd>MEMS.</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">Salychev, O.S., Inertial systems in navigation and geophysics. Moscow: Bauman MSTU Press, 1998. 352 pp.</mixed-citation><mixed-citation xml:lang="en">Salychev, O.S., Inertial Systems in Navigation and Geophysics, Moscow: Bauman MSTU Press, 1998.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Grewal, M.S., Weill, L.R., Andrews, A.P., Global positioning systems, inertial navigation, and integration. 2nd ed. New York: John Wiley &amp; Sons, 2007. 408 pp.</mixed-citation><mixed-citation xml:lang="en">Grewal, M.S., Weill, L.R., and Andrews, A.P., Global Positioning Systems, Inertial Navigation, and Integration, 2nd ed., New York: John Wiley &amp; Sons, 2007.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Матвеев В.В., Распопов В.Я. Основы построения бесплатформенных инерциальных навигационных систем. СПб: ОАО «Концерн «ЦНИИ «Электроприбор», 2009. 278 с.</mixed-citation><mixed-citation xml:lang="en">Matveev, V.V. and Raspopov, V.Ya., Osnovy postroeniya besplatformennykh inertsial’nykh navigatsionnykh sistem (Fundamentals of Designing Strapdown Inertial Navigation Systems), St. Petersburg: TsNII Elektropribor, 2009.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Crassidis, J.L., Junkins, J.L., Optimal estimation of dynamic systems. 2nd ed. New York: CRC press, 2011. 749 pp.</mixed-citation><mixed-citation xml:lang="en">Crassidis, J.L. and Junkins, J.L., Optimal Estimation of Dynamic Systems, 2nd ed., New York: CRC Press, 2011.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Kong, X., Wu, W., Zhang, L., &amp; Wang, Y., Tightly-coupled stereo visual-inertial navigation using point and line features, Sensors, 2015, 15(6), 12816–12833.</mixed-citation><mixed-citation xml:lang="en">Kong, X., Wu, W., Zhang, L., and Wang, Y., Tightly-coupled stereo visual-inertial navigation using point and line features, Sensors, 2015, 15(6), pp. 12816–12833.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Shang, J., Hu, X., Gu, F., Wang, D., &amp; Yu, S., Improvement schemes for indoor mobile location estimation: A survey, Mathematical Problems in Engineering, 2015.</mixed-citation><mixed-citation xml:lang="en">Shang, J., Hu, X., Gu, F., Wang, D., and Yu, S., Improvement schemes for indoor mobile location estimation: A survey, Mathematical Problems in Engineering, 2015.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Wan, E.A., Van Der Merwe, R., The unscented Kalman filter for nonlinear estimation, Adaptive Systems for Signal Processing, Communications, and Control Symposium, IEEE, 2000, pp. 153–158.</mixed-citation><mixed-citation xml:lang="en">Wan, E.A. and Van Der Merwe, R., The unscented Kalman filter for nonlinear estimation, Adaptive Systems for Signal Processing, Communications, and Control Symposium, IEEE, 2000, pp. 153–158.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Li, F., Chang, L., Hu, B., &amp; Li, K., Marginalized unscented quaternion estimator for integrated INS/GPS, The Journal of Navigation, 2016, 69(5), 1125–1142.</mixed-citation><mixed-citation xml:lang="en">Li, F., Chang, L., Hu, B., and Li, K., Marginalized unscented quaternion estimator for integrated INS/GPS, The Journal of Navigation, 2016, 69(5), pp. 1125–1142.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">LaViola, J.J., A comparison of unscented and extended Kalman filtering for estimating quaternion motion, American Control Conference, 2003, vol. 3. pp. 2435–2440.</mixed-citation><mixed-citation xml:lang="en">LaViola, J.J., A comparison of unscented and extended Kalman filtering for estimating quaternion motion, American Control Conference, 2003, vol. 3. pp. 2435–2440.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">El-Sheimy, N., Shin, E.H., Niu, X., Kalman filter face-off: Extended vs. unscented Kalman filters for integrated GPS and MEMS inertial, Inside GNSS, 2006, vol. 1, no. 2, pp. 48–54.</mixed-citation><mixed-citation xml:lang="en">El-Sheimy, N., Shin, E.H., and Niu, X., Kalman filter face-off: Extended vs. unscented Kalman filters for integrated GPS and MEMS inertial, Inside GNSS, 2006, vol. 1, no. 2, pp. 48–54.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Crassidis, J.L., Sigma-point Kalman filtering for integrated GPS and inertial navigation, IEEE Transactions on Aerospace and Electronic Systems, 2006, vol. 42, no. 2, pp. 750–756.</mixed-citation><mixed-citation xml:lang="en">Crassidis, J.L., Sigma-point Kalman filtering for integrated GPS and inertial navigation, IEEE Transactions on Aerospace and Electronic Systems, 2006, vol. 42, no. 2, pp. 750–756.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Конаков А.С., Шаврин В.В., Тисленко В.И., Савин А.А. Сравнительный анализ среднеквадратической погрешности определения координат объекта в бесплатформенной инерциальной навигационной системе при использовании различных алгоритмов нелинейной фильтрации // Доклады Томского государственного университета систем управления и радиоэлектроники. 2012. № 1-1 (25). С. 5–9.</mixed-citation><mixed-citation xml:lang="en">Konakov, A.S., Shavrin, V.V., Tislenko, V.I., and Savin, A.A., Comparative analysis of the root-mean-square error in determining an object’s coordinates of in a strapdown inertial navigation system using various nonlinear filtering algorithms, Doklady Tomskogo gosudarstvennogo universiteta sistem upravleniya i radioelektroniki, 2012, no. 1-1 (25), pp. 5–9.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Шаврин В.В., Тисленко В.И., Лебедев В.Ю., Конаков А.С., Филимонов В.А., Кравец А.П. Квазиоптимальная оценка параметров сигналов ГНСС в режиме когерентного приема с использованием алгоритма сигма-точечного фильтра Калмана // Гироскопия и навигация. 2016, № 3 (94). С. 26–37.</mixed-citation><mixed-citation xml:lang="en">Shavrin, V.V., Tislenko, V.I., Lebedev V.Yu., Konakov A.S., Filimonov, V.A., and Kravets, A.P., Quasi-optimal estimation of GNSS signal parameters in coherent reception mode using the sigma-point Kalman filter algorithm, Giroskopiya i Navigatsiya, 2016, no. 3 (94), pp. 26–37.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Болотин Ю.В., Фатехрад М. Навигация пешехода с использованием бесплатформенной инерциальной навигационной системы (БИНС), установленной на стопе // Российский журнал биомеханики, Т. 19, № 1, 2015. С. 25-36.</mixed-citation><mixed-citation xml:lang="en">Bolotin, Yu.V. and Fatekhrad, M., Pedestrian navigation using a strapdown inertial navigation system (SINS) on a foot, Rossiiskii zhurnal biomekhaniki, vol. 19, no. 1, 2015, pp. 25–36.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Ryu, J.H., Gankhuyag, G., Chong, K.T., Navigation system heading and position accuracy improvement through GPS and INS data fusion, Journal of Sensors, 2016, vol. 2016, pp. 1–6.</mixed-citation><mixed-citation xml:lang="en">Ryu, J.H., Gankhuyag, G., and Chong, K.T., Navigation system heading and position accuracy improvement through GPS and INS data fusion, Journal of Sensors, 2016, vol. 2016, pp. 1–6.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Jekeli, C., Inertial navigation systems with geodetic applications. Berlin: Walter de Gruyter, 2001. 352 pp.</mixed-citation><mixed-citation xml:lang="en">Jekeli, C., Inertial Navigation Systems with Geodetic Applications, Berlin: Walter de Gruyter, 2001.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Емельянцев Г.И., Степанов А.П. Интегрированные инерциально-спутниковые системы ориентации и навигации / Под общей ред. акад. РАН В.Г. Пешехонова. СПб.: Концерн «ЦНИИ «Электроприбор, 2016. 394 с.</mixed-citation><mixed-citation xml:lang="en">Emel’yantsev, G.I. and Stepanov, A.P., Integrirovannye inertsial’no-sputnikovye sistemy orientatsii i navigatsii (Integrated INS-GNSS Orientation and Navigation Systems), Peshekhonov, V.G., Ed., St. Petersburg: Kontsern TsNII Elektropribor, 2016.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Матвеев В.В. Инерциальные навигационные системы: Учебное пособие. Тула: Изд-во ТулГУ, 2012. 199 с.</mixed-citation><mixed-citation xml:lang="en">Matveev, V.V., Inertsial'nye navigatsionnye sistemy: Uchebnoye posobiye (Inertial Navigation Systems: Tutorial), Tula: TulGU, 2012.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Quinchia, A.G., Falco, G., Falletti, E., Dovis, F., Ferrer, C., A comparison between different error modeling of MEMS applied to GPS/INS integrated systems, Sensors, 2013, vol. 13, no. 8, pp. 9549–9588.</mixed-citation><mixed-citation xml:lang="en">Quinchia, A.G., Falco, G., Falletti, E., Dovis, F., and Ferrer, C., A comparison between different error modeling of MEMS applied to GPS/INS integrated systems, Sensors, 2013, vol. 13, no. 8, pp. 9549–9588.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Martin, H., Groves, P., &amp; Newman, M., The Limits of In‐Run Calibration of MEMS Inertial Sensors and Sensor Arrays, NAVIGATION: Journal of The Institute of Navigation, 201663(2), 127–143.</mixed-citation><mixed-citation xml:lang="en">Martin, H., Groves, P., and Newman, M., The limits of in‐run calibration of MEMS inertial sensors and sensor arrays, Navigation: Journal of The Institute of Navigation, 201663(2), pp. 127–143.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Hou, H., El-Sheimy, N., Inertial sensors errors modeling using Allan variance, Proceedings of the 16th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS/GNSS 2003), 2001, pp. 2860–2867.</mixed-citation><mixed-citation xml:lang="en">Hou, H. and El-Sheimy, N., Inertial sensors errors modeling using Allan variance, Proceedings of the 16th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS/GNSS 2003), 2001, pp. 2860–2867.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">SBG Systems, Ekinox INS – User Manual: EKINOXINSUM.1.2 Revision 1.2, Mar 6, 2014.</mixed-citation><mixed-citation xml:lang="en">SBG Systems, Ekinox INS – User Manual: EKINOXINSUM.1.2 Revision 1.2, Mar 6, 2014.</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Gonzalez, R., Catania, C.A., Dabove, P., Taffernaberry, J.C., Piras, M., Model validation of an open-source framework for post-processing INS/GNSS systems, Proceedings of the 3rd International Conference on Geographical Information Systems Theory, Applications and Management (GISTAM 2017), Porto, 2017, pp. 201–208.</mixed-citation><mixed-citation xml:lang="en">Gonzalez, R., Catania, C.A., Dabove, P., Taffernaberry, J.C., and Piras, M., Model validation of an open-source framework for post-processing INS/GNSS systems, Proceedings of the 3rd International Conference on Geographical Information Systems Theory, Applications and Management (GISTAM 2017), Porto, 2017, pp. 201–208.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Gonzalez, R., NaveGo: an open-source MATLAB/GNU Octave toolbox for simulating integrated navigation systems and performing Allan variance analysis, 2016. URL: www.github.com/rodralez/NaveGo/.</mixed-citation><mixed-citation xml:lang="en">Gonzalez, R., NaveGo: an open-source MATLAB/GNU Octave toolbox for simulating integrated navigation systems and performing Allan variance analysis, 2016. URL: www.github.com/rodralez/NaveGo/.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">NovAtel Inc. Inertial Explorer R User Guide version 8.50, OM-20000106, Rev 9. Canada, 2013.</mixed-citation><mixed-citation xml:lang="en">NovAtel Inc. Inertial Explorer R User Guide version 8.50, OM-20000106, Rev 9. Canada, 2013.</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Hong, S., Lee, M.H., Chun, H.H., Kwon, S.H., Speyer, J.L., Observability of error states in GPS/INS integration, IEEE Transactions on Vehicular Technology, 2005, vol. 54, no. 2, pp. 731–743.</mixed-citation><mixed-citation xml:lang="en">Hong, S., Lee, M.H., Chun, H.H., Kwon, S.H., and Speyer, J.L., Observability of error states in GPS/INS integration, IEEE Transactions on Vehicular Technology, 2005, vol. 54, no. 2, pp. 731–743.</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Tang, Y., Wu, Y., Wu, M., Wu, W., Hu, X., Shen, L., INS/GPS integration: Global observability analysis, IEEE Transactions on Vehicular Technology, 2009, vol. 58, no. 3, pp. 1129–1142.</mixed-citation><mixed-citation xml:lang="en">Tang, Y., Wu, Y., Wu, M., Wu, W., Hu, X., and Shen, L., INS/GPS integration: Global observability analysis, IEEE Transactions on Vehicular Technology, 2009, vol. 58, no. 3, pp. 1129–1142.</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Klein, I., &amp; Diamant, R., Observability Analysis of Heading Aided INS for a Maneuvering AUV, Navigation: Journal of The Institute of Navigation, 2018, 65(1), 73–82.</mixed-citation><mixed-citation xml:lang="en">Klein, I. and Diamant, R., Observability Analysis of Heading Aided INS for a Maneuvering AUV, Navigation: Journal of The Institute of Navigation, 2018, 65(1), pp. 73–82.</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Shen, K., Xia, Y., Wang, M., Neusypin, K. A., &amp; Proletarsky, A. V., Quantifying Observability and Analysis in Integrated Navigation, Navigation: Journal of The Institute of Navigation, 2018, 65(2), 169–181.</mixed-citation><mixed-citation xml:lang="en">Shen, K., Xia, Y., Wang, M., Neusypin, K.A., and Proletarsky, A.V., Quantifying Observability and Analysis in Integrated Navigation, Navigation: Journal of The Institute of Navigation, 2018, 65(2), 169–181.</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Аль Битар Н., Гаврилов А.И. Технологии интеллектуальных вычислений в задачах повышения точности интегрированных навигационных систем // Вестник МГТУ им. Н.Э. Баумана. Сер. Приборостроение. 2019. № 1. C. 62–89.</mixed-citation><mixed-citation xml:lang="en">Al Bitar, N. and Gavrilov, A.I., Intelligent computing technologies in roblems of improving the accuracy of integrated navigation systems, Vestnik MGTU im. N.E. Baumana, Ser. Priborostroenie, 2019, no.1, pp. 62–89.</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>
