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Acknowledgements This work was supported by the Ministerio de Ciencia, Innovación y Universidades del Gobierno de España [research project number EDU2016-76414-R] and the Gobierno de Aragón [research project number S44_20R: SEIM]. They provided the funds to finance the article review process and proofreading. We wish to express our gratitude to the members of the Estado de la Educación program, in Costa Rica, for their valuable ideas and technical support. We also thank two anonymous reviewers and Dr. Miguel Villodas, senior consulting editor, whose suggestions helped to improve and clarify this manuscript.

Are homicide and drug trafficking linked to peer physical victimization in Costa Rican schools?