{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,4]],"date-time":"2026-04-04T23:55:14Z","timestamp":1775346914760,"version":"3.50.1"},"reference-count":49,"publisher":"Springer Science and Business Media LLC","issue":"4","license":[{"start":{"date-parts":[[2022,4,25]],"date-time":"2022-04-25T00:00:00Z","timestamp":1650844800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2022,4,25]],"date-time":"2022-04-25T00:00:00Z","timestamp":1650844800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Software Qual J"],"published-print":{"date-parts":[[2022,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The development that quantum computing technologies are achieving is beginning to attract the interest of companies that could potentially be users of quantum software. Thus, it is perfectly feasible that during the next few years hybrid systems will start to appear integrating both the classical software systems of companies and new quantum ones providing solutions to problems that still remain unmanageable today. A natural way to support such integration is Service-Oriented Computing. While conceptually the invocation of a quantum software service is similar to that of a classical one, technically there are many differences and technological limitations, which refer to platform independence, decoupling, scalability, etc. To highlight these differences and the difficulties to develop quality quantum services, this paper takes a well-known problem to which a quantum solution can be provided, integer factorization, making use of\u00a0the Amazon Braket quantum service platform. The exercise of trying to provide the factorization as a quantum service is carried out following the best practices, design patterns and standards existing in the implementation of classical services. This case study is used to highlight the rough edges and limitations that arise in the integration of classical-quantum hybrid systems using service-oriented computing. The conclusion of the study allows us to point out directions in which to focus research efforts in order to achieve effective quantum service-oriented computing.<\/jats:p>","DOI":"10.1007\/s11219-022-09589-y","type":"journal-article","created":{"date-parts":[[2022,4,25]],"date-time":"2022-04-25T20:03:01Z","timestamp":1650916981000},"page":"983-1002","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":55,"title":["Quantum service-oriented computing: current landscape and challenges"],"prefix":"10.1007","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4096-1282","authenticated-orcid":false,"given":"Enrique","family":"Moguel","sequence":"first","affiliation":[]},{"given":"Javier","family":"Rojo","sequence":"additional","affiliation":[]},{"given":"David","family":"Valencia","sequence":"additional","affiliation":[]},{"given":"Javier","family":"Berrocal","sequence":"additional","affiliation":[]},{"given":"Jose","family":"Garcia-Alonso","sequence":"additional","affiliation":[]},{"given":"Juan M.","family":"Murillo","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2022,4,25]]},"reference":[{"key":"9589_CR1","doi-asserted-by":"publisher","unstructured":"Barzen, J., Leymann, F., Falkenthal, M., Vietz, D., Weder, B., & Wild, K. (2020). Relevance of near-term quantum computing in the cloud: A humanities perspective. In: D. Ferguson, C. Pahl, M. Helfert (Eds.), Cloud Computing and Services Science - 10th International Conference, CLOSER 2020 (vol. 1399, pp. 25\u201358). Prague, Czech Republic. Revised Selected Papers. Communications in Computer and Information Science. Springer. https:\/\/doi.org\/10.1007\/978-3-030-72369-9_2","DOI":"10.1007\/978-3-030-72369-9_2"},{"key":"9589_CR2","doi-asserted-by":"publisher","unstructured":"Barzen, J., Leymann, F., Falkenthal, M., Vietz, D., Weder, B., & Wild, K. (2020). Relevance of near-term quantum computing in the cloud: a humanities perspective. Communications in Computer and Information Science, 1399 CCIS, 25\u201358. https:\/\/doi.org\/10.1007\/978-3-030-72369-9_2","DOI":"10.1007\/978-3-030-72369-9_2"},{"key":"9589_CR3","unstructured":"Bergholm, V., Izaac, J., Schuld, M., Gogolin, C., Alam, M. S., Ahmed, S., Arrazola, J. M., Blank, C., Delgado, A., & Jahangiri, S., et al. (2018). Pennylane: Automatic differentiation of hybrid quantum-classical computations. arXiv preprint: arXiv:1811.04968."},{"issue":"1","key":"9589_CR4","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1038\/ncomms3067","volume":"4","author":"S Boixo","year":"2013","unstructured":"Boixo, S., Albash, T., Spedalieri, F. M., Chancellor, N., & Lidar, D. A. (2013). Experimental signature of programmable quantum annealing. Nature Communications, 4(1), 1\u20138.","journal-title":"Nature Communications"},{"issue":"4","key":"9589_CR5","doi-asserted-by":"publisher","first-page":"64","DOI":"10.1145\/2983528","volume":"60","author":"A Bouguettaya","year":"2017","unstructured":"Bouguettaya, A., Singh, M., Huhns, M., Sheng, Q. Z., Dong, H., Yu, Q., et al. (2017). A service computing manifesto: the next 10 years. Communications of the ACM, 60(4), 64\u201372.","journal-title":"Communications of the ACM"},{"key":"9589_CR6","doi-asserted-by":"publisher","unstructured":"Cheng, J. K., Lim, E. M., Krikorian, Y. Y., Sklar, D. J., & Kong, V. J. (2021). A survey of encryption standard and potential impact due to quantum computing. IEEE Aerospace Conference Proceedings. https:\/\/doi.org\/10.1109\/AERO50100.2021.9438392","DOI":"10.1109\/AERO50100.2021.9438392"},{"key":"9589_CR7","unstructured":"Cohen, Y., Sivan, I., Ofek, N., Ella, L., Drucker, N., Shani, T., Weber, O., Grinberg, H., & Greenbaum, M. (2020). Quantum orchestration platform integrated hardware and software for design and execution of complex quantum control protocols. Bulletin of the American Physical Society, 65(1)."},{"issue":"1","key":"9589_CR8","doi-asserted-by":"publisher","first-page":"3","DOI":"10.1049\/IET-QTC.2020.0002","volume":"1","author":"D Cuomo","year":"2020","unstructured":"Cuomo, D., Caleffi, M., & Cacciapuoti, A. S. (2020). Towards a distributed quantum computing ecosystem. IET Quantum Communication, 1(1), 3\u20138. https:\/\/doi.org\/10.1049\/IET-QTC.2020.0002","journal-title":"IET Quantum Communication"},{"key":"9589_CR9","unstructured":"Digital Journal. (2022). Topological quantum computing market is likely to experience a tremendous growth in near future. https:\/\/www.digitaljournal.com\/pr\/topological-quantum-computing-market-is-likely-to-experience-a-tremendous-growth-in-near-future-microsoft-ibm-google-d-wave-systems"},{"key":"9589_CR10","doi-asserted-by":"publisher","unstructured":"Dreher, P., & Ramasami, M. (2019). Prototype container-based platform for extreme quantum computing algorithm development. 2019 IEEE High Performance Extreme Computing Conference. HPEC 2019. https:\/\/doi.org\/10.1109\/HPEC.2019.8916430","DOI":"10.1109\/HPEC.2019.8916430"},{"key":"9589_CR11","unstructured":"Endrei, M., Ang, J., Arsanjani, A., Chua, S., Comte, P., Krogdahl, P., Luo, M., & Newling, T. (2004). Patterns: Service-oriented architecture and web services. IBM Corporation, International Technical Support Organization New York, NY."},{"key":"9589_CR12","doi-asserted-by":"crossref","unstructured":"Garcia-Alonso, J., Rojo, J., Valencia, D., Moguel, E., Berrocal, J., & Murillo, J. M. (2021). Quantum software as a service through a quantum API gateway. IEEE Internet Computing.","DOI":"10.1109\/MIC.2021.3132688"},{"key":"9589_CR13","unstructured":"Grossi, M., Crippa, L., Aita, A., Bartoli, G., Sammarco, V., Picca, E., Said, N., Tramonto, F., & Mattei, F. (2021). A serverless cloud integration for quantum computing. arXiv:2107.02007."},{"issue":"2","key":"9589_CR14","doi-asserted-by":"publisher","first-page":"48","DOI":"10.1109\/MM.2011.108","volume":"32","author":"R Haring","year":"2011","unstructured":"Haring, R., Ohmacht, M., Fox, T., Gschwind, M., Satterfield, D., Sugavanam, K., et al. (2011). The IBM blue gene\/q compute chip. IEEE Micro, 32(2), 48\u201360.","journal-title":"IEEE Micro"},{"key":"9589_CR15","doi-asserted-by":"publisher","unstructured":"Haugeland, S. G., Nguyen, P. H., Song, H., & Chauvel, F. (2021). Migrating monoliths to microservices-based customizable multi-tenant cloud-native apps. Proceedings - 2021 47th Euromicro Conference on Software Engineering and Advanced Applications, SEAA 2021 (pp. 170\u2013177). https:\/\/doi.org\/10.1109\/SEAA53835.2021.00030","DOI":"10.1109\/SEAA53835.2021.00030"},{"issue":"2","key":"9589_CR16","doi-asserted-by":"publisher","first-page":"12","DOI":"10.1002\/que2.12","volume":"1","author":"F Hu","year":"2019","unstructured":"Hu, F., Wang, B. -N., Wang, N., & Wang, C. (2019). Quantum machine learning with d-wave quantum computer. Quantum Engineering, 1(2), 12.","journal-title":"Quantum Engineering"},{"key":"9589_CR17","unstructured":"Hooton, C. (2019). Examining the economic contributions of the cloud to the united states economy. Report. Internet Association. Washington, DC."},{"issue":"1","key":"9589_CR18","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1038\/s41598-018-36058-z","volume":"8","author":"S Jiang","year":"2018","unstructured":"Jiang, S., Britt, K. A., McCaskey, A. J., Humble, T. S., & Kais, S. (2018). Quantum annealing for prime factorization. Scientific Reports, 8(1), 1\u20139.","journal-title":"Scientific Reports"},{"issue":"6890","key":"9589_CR19","doi-asserted-by":"publisher","first-page":"709","DOI":"10.1038\/nature00784","volume":"417","author":"D Kielpinski","year":"2002","unstructured":"Kielpinski, D., Monroe, C., & Wineland, D. J. (2002). Architecture for a large-scale ion-trap quantum computer. Nature, 417(6890), 709\u2013711.","journal-title":"Nature"},{"key":"9589_CR20","doi-asserted-by":"publisher","unstructured":"Kumara, I., Heuvel, W. -J. V. D., & Tamburri, D. A. (2021). QSOC: Quantum service-oriented computing. In: Symposium and Summer School on Service-Oriented Computing (pp. 52\u201363). Springer. https:\/\/doi.org\/10.1007\/978-3-030-87568-8_3, https:\/\/link.springer.com\/chapter\/10.1007\/978-3-030-87568-8_3","DOI":"10.1007\/978-3-030-87568-8_3"},{"issue":"11","key":"9589_CR21","doi-asserted-by":"publisher","first-page":"596","DOI":"10.1038\/s42254-020-00247-5","volume":"2","author":"ER MacQuarrie","year":"2020","unstructured":"MacQuarrie, E. R., Simon, C., Simmons, S., & Maine, E. (2020). The emerging commercial landscape of quantum computing. Nature Reviews Physics, 2(11), 596\u2013598.","journal-title":"Nature Reviews Physics"},{"key":"9589_CR22","doi-asserted-by":"publisher","unstructured":"Mazlami, G., Cito, J., & Leitner, P. (2017). Extraction of microservices from monolithic software architectures. Proceedings - 2017 IEEE 24th International Conference on Web Services, ICWS 2017 (pp. 524\u2013531). https:\/\/doi.org\/10.1109\/ICWS.2017.61","DOI":"10.1109\/ICWS.2017.61"},{"issue":"2","key":"9589_CR23","doi-asserted-by":"publisher","first-page":"024002","DOI":"10.1088\/2058-9565\/ab6bf6","volume":"5","author":"AJ McCaskey","year":"2020","unstructured":"McCaskey, A. J., Lyakh, D. I., Dumitrescu, E. F., Powers, S. S., & Humble, T. S. (2020). Xacc: a system-level software infrastructure for heterogeneous quantum-classical computing. Quantum Science and Technology, 5(2), 024002.","journal-title":"Quantum Science and Technology"},{"key":"9589_CR24","doi-asserted-by":"crossref","unstructured":"McCaskey, A., Dumitrescu, E., Liakh, D., & Humble, T. (2018). Hybrid programming for near-term quantum computing systems. In: 2018 IEEE International Conference on Rebooting Computing (ICRC) (pp. 1\u201312). IEEE.","DOI":"10.1109\/ICRC.2018.8638598"},{"key":"9589_CR25","unstructured":"Moguel, E., Berrocal, J., Garc\u00eda-Alonso, J., & Murillo, J. M. (2020). A roadmap for quantum software engineering: Applying the lessons learned from the classics. In: R. P\u00e9rez-Castillo, M. Piattini, G. Peterssen, J. L.Hevia (Eds.), Short Papers Proceedings of the 1st International Workshop on Software Engineering & Technology (Q-SET\u201920) Co-located with IEEE International Conference on Quantum Computing and Engineering (IEEE Quantum Week 2020), (Online Conference) (vol. 2705, pp. 5\u201313). Broomfield, Colorado, USA. CEUR Workshop Proceedings. CEUR-WS.org. http:\/\/ceur-ws.org\/Vol-2705\/short1.pdf"},{"issue":"2","key":"9589_CR26","doi-asserted-by":"publisher","first-page":"205","DOI":"10.1038\/s41567-019-0704-4","volume":"16","author":"M Motta","year":"2020","unstructured":"Motta, M., Sun, C., Tan, A. T., O\u2019Rourke, M. J., Ye, E., Minnich, A. J., et al. (2020). Determining eigenstates and thermal states on a quantum computer using quantum imaginary time evolution. Nature Physics, 16(2), 205\u2013210.","journal-title":"Nature Physics"},{"key":"9589_CR27","unstructured":"Newman, S. (2021). Building microservices. Oreilly."},{"key":"9589_CR28","doi-asserted-by":"crossref","unstructured":"Nielsen, M. A., & Chuang, I. (2002). Quantum computation and quantum information. American Association of Physics Teachers.","DOI":"10.1119\/1.1463744"},{"key":"9589_CR29","unstructured":"Papazoglou, M. P. (2003). Service-oriented computing: Concepts, characteristics and directions. In: Proceedings of the Fourth International Conference on Web Information Systems Engineering, 2003 (pp. 3\u201312). WISE 2003. IEEE."},{"key":"9589_CR30","doi-asserted-by":"publisher","first-page":"102933","DOI":"10.1016\/j.advengsoft.2020.102933","volume":"151","author":"R P\u00e9rez-Castillo","year":"2021","unstructured":"P\u00e9rez-Castillo, R., Serrano, M. A., & Piattini, M. (2021). Software modernization to embrace quantum technology. Advances in Engineering Software, 151, 102933.","journal-title":"Advances in Engineering Software"},{"key":"9589_CR31","unstructured":"P\u00e9rez-Castillo, R., & Piattini, M. (2020). The quantum software engineering path. In: R. P\u00e9rez-Castillo, M. Piattini, G. Peterssen, J. L. Hevia (Eds.), Short Papers Proceedings of the 1st International Workshop on Software Engineering & Technology (Q-SET\u201920) Co-located with IEEE International Conference on Quantum Computing and Engineering (IEEE Quantum Week 2020) (vol. 2705, pp. 1\u20134). Broomfield, Colorado, USA. CEUR Workshop Proceedings. CEUR-WS.org. http:\/\/ceur-ws.org\/Vol-2705\/invited1.pdf"},{"issue":"3","key":"9589_CR32","doi-asserted-by":"publisher","first-page":"12","DOI":"10.1145\/3402127.3402131","volume":"45","author":"M Piattini","year":"2020","unstructured":"Piattini, M., Peterssen, G., & P\u00e9rez-Castillo, R. (2020). Quantum computing: a new software engineering golden age. ACM SIGSOFT Softw Eng Notes, 45(3), 12\u201314. https:\/\/doi.org\/10.1145\/3402127.3402131","journal-title":"ACM SIGSOFT Softw Eng Notes"},{"issue":"1","key":"9589_CR33","doi-asserted-by":"publisher","first-page":"62","DOI":"10.1109\/MITP.2020.3019522","volume":"23","author":"M Piattini","year":"2021","unstructured":"Piattini, M., Serrano, M., Perez-Castillo, R., Petersen, G., & Hevia, J. L. (2021). Toward a quantum software engineering. IT Professional, 23(1), 62\u201366.","journal-title":"IT Professional"},{"key":"9589_CR34","unstructured":"Piattini, M., Peterssen, G., P\u00e9rez-Castillo, R., Hevia, J. L., Serrano, M. A., Hern\u00e1ndez, G., de Guzm\u00e1n, I. G. R., Paradela, C. A., Polo, M., Murina, E., Jim\u00e9nez, L., Marque\u00f1o, J. C., Gallego, R., Tura, J., Phillipson, F., Murillo, J. M., Ni\u00f1o, A., & Rodr\u00edguez, M. (2020). The talavera manifesto for quantum software engineering and programming. In: Short Papers Proceedings of the 1st International Workshop on the Quantum Software Engineering & Programming (vol. 2561, pp. 1\u20135). Talavera de la Reina, Spain. CEUR Workshop Proceedings."},{"key":"9589_CR35","doi-asserted-by":"publisher","unstructured":"Pistoia, M., Ahmad, S. F., Ajagekar, A., Buts, A., Chakrabarti, S., Herman, D., Hu, S., Jena, A., Minssen, P., Niroula, P., Rattew, A., Sun, Y., & Yalovetzky, R. (2021). Quantum machine learning for finance. arXiv:2109.04298. https:\/\/doi.org\/10.1109\/ICCAD51958.2021.9643469","DOI":"10.1109\/ICCAD51958.2021.9643469"},{"key":"9589_CR36","unstructured":"Rahaman, M., & Islam, M. M. (2015). A review on progress and problems of quantum computing as a service (GCAAS) in the perspective of cloud computing. Global Journal of Computer Science and Technology."},{"issue":"3","key":"9589_CR37","doi-asserted-by":"publisher","first-page":"381","DOI":"10.2307\/3250967","volume":"24","author":"T Ravichandran","year":"2000","unstructured":"Ravichandran, T., & Rai, A. (2000). Quality management in systems development: an organizational system perspective. MIS Quarterly: Management Information Systems, 24(3), 381\u2013410. https:\/\/doi.org\/10.2307\/3250967","journal-title":"MIS Quarterly: Management Information Systems"},{"key":"9589_CR38","unstructured":"Richardson, C. (2019). Microservices Patterns (p. 490). Manning Publications."},{"key":"9589_CR39","unstructured":"Rojo, J., Valencia, D., Berrocal, J., Moguel, E., Garcia-Alonso, J., & Rodriguez, J. M. M. (2021). Trials and tribulations of developing hybrid quantum-classical microservices systems. arXiv:2105.04421"},{"key":"9589_CR40","doi-asserted-by":"publisher","unstructured":"Sete, E. A., Zeng, W. J., & Rigetti, C. T. (2016). A functional architecture for scalable quantum computing. 2016 IEEE International Conference on Rebooting Computing. ICRC 2016 - Conference Proceedings. https:\/\/doi.org\/10.1109\/ICRC.2016.7738703","DOI":"10.1109\/ICRC.2016.7738703"},{"key":"9589_CR41","unstructured":"Sodhi, B. (2018). Quality attributes on quantum computing platforms. arXiv preprint: arXiv:1803.07407"},{"issue":"1","key":"9589_CR42","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1038\/s41598-019-56847-4","volume":"10","author":"B Wang","year":"2020","unstructured":"Wang, B., Hu, F., Yao, H., & Wang, C. (2020). Prime factorization algorithm based on parameter optimization of Ising model. Scientific Reports, 10(1), 1\u201310.","journal-title":"Scientific Reports"},{"issue":"2","key":"9589_CR43","doi-asserted-by":"publisher","first-page":"137","DOI":"10.1007\/s00354-008-0081-5","volume":"28","author":"L Wang","year":"2010","unstructured":"Wang, L., Von Laszewski, G., Younge, A., He, X., Kunze, M., Tao, J., & Fu, C. (2010). Cloud computing: a perspective study. New Generation Computing, 28(2), 137\u2013146.","journal-title":"New Generation Computing"},{"key":"9589_CR44","doi-asserted-by":"publisher","unstructured":"Wild, K., Breitenbucher, U., Harzenetter, L., Leymann, F., Vietz, D., & Zimmermann, M. (2020). TOSCA4QC: Two modeling styles for TOSCA to automate the deployment and orchestration of quantum applications. Proceedings - 2020 IEEE 24th International Enterprise Distributed Object Computing Conference (pp. 125\u2013134). EDOC 2020. https:\/\/doi.org\/10.1109\/EDOC49727.2020.00024","DOI":"10.1109\/EDOC49727.2020.00024"},{"key":"9589_CR45","doi-asserted-by":"crossref","unstructured":"Wille, R., Van Meter, R., & Naveh, Y. (2019). IBM\u2019s qiskit tool chain: Working with and developing for real quantum computers. In: 2019 Design, Automation & Test in Europe Conference & Exhibition (DATE) (pp. 1234\u20131240). IEEE.","DOI":"10.23919\/DATE.2019.8715261"},{"key":"9589_CR46","unstructured":"Wolff, E. (2019). Microservices - a practical guide: Principles, concepts, and recipes. Lean Publishing."},{"key":"9589_CR47","unstructured":"You, S. (2020). A quantum computing framework for complex system reliability assessment. arXiv:2012.03919."},{"key":"9589_CR48","unstructured":"Zhao, J. (2020). Quantum software engineering: Landscapes and horizons. CoRR abs\/2007.07047. arXiv:2007.07047"},{"issue":"2","key":"9589_CR49","doi-asserted-by":"publisher","first-page":"378","DOI":"10.1016\/J.DRUDIS.2021.10.006","volume":"27","author":"M Zinner","year":"2022","unstructured":"Zinner, M., Dahlhausen, F., Boehme, P., Ehlers, J., Bieske, L., & Fehring, L. (2022). Drug Discovery Today, 27(2), 378\u2013383. https:\/\/doi.org\/10.1016\/J.DRUDIS.2021.10.006","journal-title":"Drug Discovery Today"}],"container-title":["Software Quality Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s11219-022-09589-y.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s11219-022-09589-y\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s11219-022-09589-y.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,11,24]],"date-time":"2022-11-24T14:52:54Z","timestamp":1669301574000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s11219-022-09589-y"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,4,25]]},"references-count":49,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2022,12]]}},"alternative-id":["9589"],"URL":"https:\/\/doi.org\/10.1007\/s11219-022-09589-y","relation":{},"ISSN":["0963-9314","1573-1367"],"issn-type":[{"value":"0963-9314","type":"print"},{"value":"1573-1367","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,4,25]]},"assertion":[{"value":"20 March 2022","order":1,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"25 April 2022","order":2,"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 that there is no conflict of interest.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}}]}}