{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,5]],"date-time":"2025-10-05T00:31:55Z","timestamp":1759624315910,"version":"build-2065373602"},"reference-count":39,"publisher":"Springer Science and Business Media LLC","issue":"9-10","license":[{"start":{"date-parts":[[2025,4,22]],"date-time":"2025-04-22T00:00:00Z","timestamp":1745280000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"},{"start":{"date-parts":[[2025,4,22]],"date-time":"2025-04-22T00:00:00Z","timestamp":1745280000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"}],"funder":[{"DOI":"10.13039\/501100003593","name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004911","name":"Funda\u00e7\u00e3o de Amparo \u00e0 Pesquisa do Estado do Piau\u00ed","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004911","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Ann. Telecommun."],"published-print":{"date-parts":[[2025,10]]},"DOI":"10.1007\/s12243-025-01092-2","type":"journal-article","created":{"date-parts":[[2025,4,22]],"date-time":"2025-04-22T02:09:29Z","timestamp":1745287769000},"page":"729-744","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Crosstalk-aware circuit reallocation to reduce blocking in spatial division multiplexed elastic optical networks"],"prefix":"10.1007","volume":"80","author":[{"given":"Selles G. F. C.","family":"Ara\u00fajo","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andr\u00e9 C. B.","family":"Soares","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2025,4,22]]},"reference":[{"issue":"17","key":"1092_CR1","doi-asserted-by":"publisher","first-page":"16576","DOI":"10.1364\/OE.19.016576","volume":"19","author":"T Hayashi","year":"2011","unstructured":"Hayashi T, Taru T, Shimakawa O, Sasaki T, Sasaoka E (2011) Design and fabrication of ultra-low crosstalk and low-loss multi-core fiber. Opt Express 19(17):16576\u201316592. https:\/\/doi.org\/10.1364\/OE.19.016576","journal-title":"Opt Express"},{"issue":"1","key":"1092_CR2","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1364\/JOCN.9.000001","volume":"9","author":"DM Marom","year":"2017","unstructured":"Marom DM, Colbourne PD, D\u2019errico A, Fontaine NK, Ikuma Y, Proietti R, Zong L, Rivas-Moscoso JM, Tomkos I (2017) Survey of photonic switching architectures and technologies in support of spatially and spectrally flexible optical networking [invited]. J Opt Commun Netw 9(1):1\u201326. https:\/\/doi.org\/10.1364\/JOCN.9.000001","journal-title":"J Opt Commun Netw"},{"key":"1092_CR3","doi-asserted-by":"publisher","first-page":"58","DOI":"10.1016\/j.osn.2017.08.003","volume":"27","author":"M Klinkowski","year":"2018","unstructured":"Klinkowski M, Lechowicz P, Walkowiak K (2018) Survey of resource allocation schemes and algorithms in spectrally-spatially flexible optical networking. Opt Switch Netw 27:58\u201378. https:\/\/doi.org\/10.1016\/j.osn.2017.08.003","journal-title":"Opt Switch Netw"},{"doi-asserted-by":"publisher","unstructured":"Puttnam BJ, Lu\u00eds RS, Rademacher G, Alfredsson A, Klaus W, Sakaguchi J, Awaji Y, Agrell E, Wada N (2018) Characteristics of homogeneous multi-core fibers for SDM transmission. APL Photonics 4(2):022804. https:\/\/doi.org\/10.1063\/1.5048537https:\/\/pubs.aip.org\/aip\/app\/article-pdf\/doi\/10.1063\/1.5048537\/14568785\/022804_1_online.pdf","key":"1092_CR4","DOI":"10.1063\/1.5048537"},{"issue":"9","key":"1092_CR5","doi-asserted-by":"publisher","first-page":"1186","DOI":"10.1364\/OPTICA.427631","volume":"8","author":"BJ Puttnam","year":"2021","unstructured":"Puttnam BJ, Rademacher G, Lu\u00eds RS (2021) Space-division multiplexing for optical fiber communications. Optica 8(9):1186\u20131203. https:\/\/doi.org\/10.1364\/OPTICA.427631","journal-title":"Optica"},{"key":"1092_CR6","doi-asserted-by":"publisher","DOI":"10.1016\/j.osn.2020.100584","volume":"38","author":"L Brasileiro Costa","year":"2020","unstructured":"Brasileiro Costa L, Drummond A (2020) A survey on challenges of spatial division multiplexing enabled elastic optical networks. Opt Switch Netw 38:100584. https:\/\/doi.org\/10.1016\/j.osn.2020.100584","journal-title":"Opt Switch Netw"},{"unstructured":"CISCO (2021) Cisco annual internet report (2018\u20132023)","key":"1092_CR7"},{"issue":"1","key":"1092_CR8","doi-asserted-by":"publisher","first-page":"183","DOI":"10.1109\/COMST.2017.2769102","volume":"20","author":"BC Chatterjee","year":"2018","unstructured":"Chatterjee BC, Ba S, Oki E (2018) Fragmentation problems and management approaches in elastic optical networks: a survey. IEEE Commun Surv Tutor 20(1):183\u2013210. https:\/\/doi.org\/10.1109\/COMST.2017.2769102","journal-title":"IEEE Commun Surv Tutor"},{"issue":"3","key":"1092_CR9","doi-asserted-by":"publisher","first-page":"1776","DOI":"10.1109\/COMST.2015.2431731","volume":"17","author":"BC Chatterjee","year":"2015","unstructured":"Chatterjee BC, Sarma N, Oki E (2015) Routing and spectrum allocation in elastic optical networks: a tutorial. IEEE Commun Surv Tutor 17(3):1776\u20131800. https:\/\/doi.org\/10.1109\/COMST.2015.2431731","journal-title":"IEEE Commun Surv Tutor"},{"issue":"4","key":"1092_CR10","doi-asserted-by":"publisher","first-page":"1065","DOI":"10.1109\/SURV.2011.101911.00023","volume":"14","author":"AG Rahbar","year":"2012","unstructured":"Rahbar AG (2012) Review of dynamic impairment-aware routing and wavelength assignment techniques in all-optical wavelength-routed networks. IEEE Commun Surv Tutor 14(4):1065\u20131089. https:\/\/doi.org\/10.1109\/SURV.2011.101911.00023","journal-title":"IEEE Commun Surv Tutor"},{"doi-asserted-by":"publisher","unstructured":"Fontinele A, Santos I, Nol\u00eato Neto J, Campelo DR, Soares A (2017) An efficient IA-RMLSA algorithm for transparent elastic optical networks. Comput Netw 118:1\u201314. https:\/\/doi.org\/10.1016\/j.comnet.2017.03.003","key":"1092_CR11","DOI":"10.1016\/j.comnet.2017.03.003"},{"doi-asserted-by":"publisher","unstructured":"Lacerda JC, Cartaxo AVT, Soares ACB (2024) Novel dynamic impairment-aware algorithm for modulation, core, and spectrum assignment in SDM-EONS. Opt Switch Netw 51. https:\/\/doi.org\/10.1016\/j.osn.2023.100763","key":"1092_CR12","DOI":"10.1016\/j.osn.2023.100763"},{"key":"1092_CR13","doi-asserted-by":"publisher","first-page":"61","DOI":"10.1016\/j.osn.2019.03.003","volume":"33","author":"FRL Lobato","year":"2019","unstructured":"Lobato FRL, Jacob A, Rodrigues J, Cartaxo AVT, Costa JCWA (2019) Inter-core crosstalk aware greedy algorithm for spectrum and core assignment in space division multiplexed elastic optical networks. Opt Switch Netw 33:61\u201373. https:\/\/doi.org\/10.1016\/j.osn.2019.03.003","journal-title":"Opt Switch Netw"},{"doi-asserted-by":"publisher","unstructured":"Lacerda J\u00fanior J, Fontinele A, Santos I, Le\u00e3o E, Campelo D, Monteiro JA, Soares A (2020) Algoritmo de balanceamento inter-n\u00facleos para redes \u00d3pticas el\u00e1sticas com multiplexa\u00e7\u00e3o por divis\u00e3o espacial. In: Anais do XXXVIII Simp\u00f3sio Brasileiro de Redes de Computadores e Sistemas Distribu\u00eddos, pp 519\u2013532. SBC, Porto Alegre, RS, Brasil. https:\/\/doi.org\/10.5753\/sbrc.2020.12306. https:\/\/sol.sbc.org.br\/index.php\/sbrc\/article\/view\/12306","key":"1092_CR14","DOI":"10.5753\/sbrc.2020.12306"},{"doi-asserted-by":"crossref","unstructured":"Ara\u00fajo S, Soares ACB (2024) Realoca\u00e7\u00e3o de circuito ciente de crosstalk para redu\u00e7\u00e3o de bloqueios em redes \u00d3pticas el\u00e1sticas com multiplexa\u00e7\u00e3o espacial. In: XXXXII Simp\u00f3sio Brasileiro de Redes de Computadores e Sistemas Distribu\u00eddos (SBRC). SBC, Niter\u00f3i, RJ, Brasil","key":"1092_CR15","DOI":"10.5753\/sbrc.2024.1278"},{"doi-asserted-by":"publisher","unstructured":"Zhao Y, Zhang J (2016) Crosstalk-aware cross-core virtual concatenation in spatial division multiplexing elastic optical networks. Electron Lett 52(20):1701\u20131703. https:\/\/doi.org\/10.1049\/el.2016.2132https:\/\/ietresearch.onlinelibrary.wiley.com\/doi\/pdf\/10.1049\/el.2016.2132","key":"1092_CR16","DOI":"10.1049\/el.2016.2132"},{"issue":"4","key":"1092_CR17","doi-asserted-by":"publisher","first-page":"5014","DOI":"10.1364\/OE.27.005014","volume":"27","author":"Y Zhao","year":"2019","unstructured":"Zhao Y, Hu L, Zhu R, Yu X, Li Y, Wang W, Zhang J (2019) Crosstalk-aware spectrum defragmentation by re-provisioning advance reservation requests in space division multiplexing enabled elastic optical networks with multi-core fiber. Opt Express 27(4):5014\u20135032. https:\/\/doi.org\/10.1364\/OE.27.005014","journal-title":"Opt Express"},{"issue":"1","key":"1092_CR18","doi-asserted-by":"publisher","first-page":"326","DOI":"10.1109\/MNET.011.2000367","volume":"35","author":"S Trindade","year":"2021","unstructured":"Trindade S, da Fonseca NLS (2021) Machine learning for spectrum defragmentation in space-division multiplexing elastic optical networks. IEEE Netw 35(1):326\u2013332. https:\/\/doi.org\/10.1109\/MNET.011.2000367","journal-title":"IEEE Netw"},{"doi-asserted-by":"publisher","unstructured":"J\u00fanior PS, Marotta M, Costa L, Drummond A (2023) Janela de desfragmenta\u00e7\u00e3o de espectro em redes sdm-eon. In: Anais do XLI Simp\u00f3sio Brasileiro de Redes de Computadores e Sistemas Distribu\u00eddos, pp 323\u2013336. SBC, Porto Alegre, RS, Brasil. https:\/\/doi.org\/10.5753\/sbrc.2023.448https:\/\/sol.sbc.org.br\/index.php\/sbrc\/article\/view\/24548","key":"1092_CR19","DOI":"10.5753\/sbrc.2023.448"},{"key":"1092_CR20","doi-asserted-by":"publisher","DOI":"10.1016\/j.compeleceng.2020.106579","volume":"83","author":"S Hosseini","year":"2020","unstructured":"Hosseini S, Ghaffarpour Rahbar A, Jafari-Beyrami M (2020) Survivable time-aware traffic grooming in spatial division multiplexing elastic optical networks with minimized crosstalk. Comput Electr Eng 83:106579. https:\/\/doi.org\/10.1016\/j.compeleceng.2020.106579","journal-title":"Comput Electr Eng"},{"doi-asserted-by":"publisher","unstructured":"Jr JL, Morais A, Cartaxo A, Soares A (2024) Um novo algoritmo para mitigar crosstalk e fragmenta\u00e7\u00e3o em redes \u00d3pticas el\u00e1sticas multi-n\u00facleos. In: Anais do XLII Simp\u00f3sio Brasileiro de Redes de Computadores e Sistemas Distribu\u00eddos, pp 267\u2013280. SBC, Porto Alegre, RS, Brasil. https:\/\/doi.org\/10.5753\/sbrc.2024.1337https:\/\/sol.sbc.org.br\/index.php\/sbrc\/article\/view\/29798","key":"1092_CR21","DOI":"10.5753\/sbrc.2024.1337"},{"issue":"12","key":"1092_CR22","doi-asserted-by":"publisher","first-page":"1059","DOI":"10.1364\/JOCN.6.001059","volume":"6","author":"S Fujii","year":"2014","unstructured":"Fujii S, Hirota Y, Tode H, Murakami K (2014) On-demand spectrum and core allocation for reducing crosstalk in multicore fibers in elastic optical networks. J Opt Commun Netw 6(12):1059\u20131071","journal-title":"J Opt Commun Netw"},{"doi-asserted-by":"crossref","unstructured":"Luo R, Hua N, Li Y, Zheng X, Zhou B (2017) Fast parallel lightpath re-optimization for crosstalk reduction in multi-core fiber networks. In: 2017 Optical fiber communications conference and exhibition (OFC), pp 1\u20133","key":"1092_CR23","DOI":"10.1364\/OFC.2017.W4F.2"},{"doi-asserted-by":"publisher","unstructured":"Brasileiro IB, Costa LR, Silva GEV, Drummond AC (2020) Empowering hitless spectral defragmentation in elastic optical networks with spatial multiplexing. In: 2020 22nd International conference on transparent optical networks (ICTON), pp 1\u20134. https:\/\/doi.org\/10.1109\/ICTON51198.2020.9203233","key":"1092_CR24","DOI":"10.1109\/ICTON51198.2020.9203233"},{"key":"1092_CR25","doi-asserted-by":"publisher","first-page":"15346","DOI":"10.1109\/ACCESS.2018.2795102","volume":"6","author":"Y Zhao","year":"2018","unstructured":"Zhao Y, Hu L, Zhu R, Yu X, Wang X, Zhang J (2018) Crosstalk-aware spectrum defragmentation based on spectrum compactness in space division multiplexing enabled elastic optical networks with multicore fiber. IEEE Access 6:15346\u201315355. https:\/\/doi.org\/10.1109\/ACCESS.2018.2795102","journal-title":"IEEE Access"},{"issue":"1","key":"1092_CR26","doi-asserted-by":"publisher","first-page":"8","DOI":"10.1364\/JOCN.10.0000A8","volume":"10","author":"R Luo","year":"2018","unstructured":"Luo R, Hua N, Zheng X, Zhou B (2018) Fast parallel lightpath re-optimization for space-division multiplexing optical networks based on time synchronization. J Opt Commun Netw 10(1):8\u201319. https:\/\/doi.org\/10.1364\/JOCN.10.0000A8","journal-title":"J Opt Commun Netw"},{"doi-asserted-by":"publisher","unstructured":"Khantwal R, Kumar V, Oki E, Chatterjee BC (2023) Pdavxt: partition-based crosstalk-avoided defragmentation scheme for spectrally-spatially elastic optical networks. In: 2023 23rd International conference on transparent optical networks (ICTON), pp 1\u20134. https:\/\/doi.org\/10.1109\/ICTON59386.2023.10207340","key":"1092_CR27","DOI":"10.1109\/ICTON59386.2023.10207340"},{"doi-asserted-by":"publisher","unstructured":"Hu L, Zhao Y, Zhu R, Yu X, Zhang J, Liu Z (2017) Crosstalk-aware spectrum defragmentation in space division multiplexing elastic optical networks. In: Asia Communications and Photonics Conference, pp. 3\u20136. Optica Publishing Group, ???. https:\/\/doi.org\/10.1364\/ACPC.2017.Su3C.6https:\/\/opg.optica.org\/abstract.cfm?URI=ACPC-2017-Su3C.6","key":"1092_CR28","DOI":"10.1364\/ACPC.2017.Su3C.6"},{"issue":"16","key":"1092_CR29","doi-asserted-by":"publisher","first-page":"4164","DOI":"10.1109\/JLT.2019.2902454","volume":"37","author":"Q Yao","year":"2019","unstructured":"Yao Q, Yang H, Yu A, Zhang J (2019) Transductive transfer learning-based spectrum optimization for resource reservation in seven-core elastic optical networks. J Lightwave Technol 37(16):4164\u20134172. https:\/\/doi.org\/10.1109\/JLT.2019.2902454","journal-title":"J Lightwave Technol"},{"issue":"1","key":"1092_CR30","doi-asserted-by":"publisher","first-page":"125","DOI":"10.1109\/JLT.2012.2225600","volume":"31","author":"F Cugini","year":"2013","unstructured":"Cugini F, Paolucci F, Meloni G, Berrettini G, Secondini M, Fresi F, Sambo N, Poti L, Castoldi P (2013) Push-pull defragmentation without traffic disruption in flexible grid optical networks. J Lightwave Technol 31(1):125\u2013133. https:\/\/doi.org\/10.1109\/JLT.2012.2225600","journal-title":"J Lightwave Technol"},{"issue":"8","key":"1092_CR31","doi-asserted-by":"publisher","first-page":"1956","DOI":"10.1109\/JLT.2015.2503434","volume":"34","author":"G Meloni","year":"2016","unstructured":"Meloni G, Fresi F, Imran M, Paolucci F, Cugini F, D\u2019Errico A, Giorgi L, Sasaki T, Castoldi P, Pot L (2016) Software-defined defragmentation in space-division multiplexing with quasi-hitless fast core switching. J Lightwave Technol 34(8):1956\u20131962. https:\/\/doi.org\/10.1109\/JLT.2015.2503434","journal-title":"J Lightwave Technol"},{"issue":"4","key":"1092_CR32","doi-asserted-by":"publisher","first-page":"109","DOI":"10.1109\/SURV.2009.090407","volume":"11","author":"CV Saradhi","year":"2009","unstructured":"Saradhi CV, Subramaniam S (2009) Physical layer impairment aware routing (PLIAR) in WDM optical networks: issues and challenges. IEEE Commun Surv Tutor 11(4):109\u2013130. https:\/\/doi.org\/10.1109\/SURV.2009.090407","journal-title":"IEEE Commun Surv Tutor"},{"issue":"3","key":"1092_CR33","doi-asserted-by":"publisher","first-page":"458","DOI":"10.1109\/JLT.2016.2613893","volume":"35","author":"P Poggiolini","year":"2017","unstructured":"Poggiolini P, Jiang Y (2017) Recent advances in the modeling of the impact of nonlinear fiber propagation effects on uncompensated coherent transmission systems. J Lightwave Technol 35(3):458\u2013480. https:\/\/doi.org\/10.1109\/JLT.2016.2613893","journal-title":"J Lightwave Technol"},{"doi-asserted-by":"publisher","unstructured":"Habibi M, Beyranvand H (2019) Impairment-aware manycast routing, modulation level, and spectrum assignment in elastic optical networks. J Opt Commun Netw 11(5):179\u2013189. https:\/\/doi.org\/10.1364\/JOCN.11.000179","key":"1092_CR34","DOI":"10.1364\/JOCN.11.000179"},{"issue":"2","key":"1092_CR35","doi-asserted-by":"publisher","first-page":"459","DOI":"10.1109\/JLT.2014.2387891","volume":"33","author":"P Poggiolini","year":"2015","unstructured":"Poggiolini P, Bosco G, Carena A, Curri V, Jiang Y, Forghieri F (2015) A simple and effective closed-form GN model correction formula accounting for signal non-gaussian distribution. J Lightwave Technol 33(2):459\u2013473","journal-title":"J Lightwave Technol"},{"issue":"5","key":"1092_CR36","doi-asserted-by":"publisher","first-page":"1014","DOI":"10.1109\/JLT.2013.2296781","volume":"32","author":"M Zhang","year":"2014","unstructured":"Zhang M, You C, Jiang H, Zhu Z (2014) Dynamic and adaptive bandwidth defragmentation in spectrum-sliced elastic optical networks with time-varying traffic. J Lightwave Technol 32(5):1014\u20131023. https:\/\/doi.org\/10.1109\/JLT.2013.2296781","journal-title":"J Lightwave Technol"},{"issue":"24","key":"1092_CR37","doi-asserted-by":"publisher","first-page":"26958","DOI":"10.1364\/OE.20.026958","volume":"20","author":"R Proietti","year":"2012","unstructured":"Proietti R, Qin C, Guan B, Yin Y, Scott RP, Yu R, Yoo SJB (2012) Rapid and complete hitless defragmentation method using a coherent RX lo with fast wavelength tracking in elastic optical networks. Opt Express 20(24):26958\u201326968. https:\/\/doi.org\/10.1364\/OE.20.026958","journal-title":"Opt Express"},{"doi-asserted-by":"crossref","unstructured":"Takagi T, Hasegawa H, Sato K-i, Sone Y, Hirano A, Jinno M (2011) Disruption minimized spectrum defragmentation in elastic optical path networks that adopt distance adaptive modulation. In: 2011 37th European conference and exhibition on optical communication, pp 1\u20133","key":"1092_CR38","DOI":"10.1364\/ECOC.2011.Mo.2.K.3"},{"doi-asserted-by":"publisher","unstructured":"Araujo S, Soares A, Fontinele A, Campelo DR, dos Reis JV, Barbosa E (2018) Circuit reallocation strategy aware of the physical layer effects for elastic optical networks. In: 2018 IEEE Symposium on computers and communications (ISCC), pp 970\u2013975. https:\/\/doi.org\/10.1109\/ISCC.2018.8538583","key":"1092_CR39","DOI":"10.1109\/ISCC.2018.8538583"}],"container-title":["Annals of Telecommunications"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s12243-025-01092-2.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s12243-025-01092-2\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s12243-025-01092-2.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,4]],"date-time":"2025-10-04T07:26:42Z","timestamp":1759562802000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s12243-025-01092-2"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,4,22]]},"references-count":39,"journal-issue":{"issue":"9-10","published-print":{"date-parts":[[2025,10]]}},"alternative-id":["1092"],"URL":"https:\/\/doi.org\/10.1007\/s12243-025-01092-2","relation":{},"ISSN":["0003-4347","1958-9395"],"issn-type":[{"type":"print","value":"0003-4347"},{"type":"electronic","value":"1958-9395"}],"subject":[],"published":{"date-parts":[[2025,4,22]]},"assertion":[{"value":"2 September 2024","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"9 April 2025","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"22 April 2025","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare no competing interests.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}}]}}